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Clinoptilolite-Ca-Heulandite-Ca Series

A solid-solution series between two end-member minerals

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Photos of Clinoptilolite-Ca-Heulandite-Ca Series (814)Discuss Clinoptilolite-Ca-Heulandite-Ca Series

Clinoptilolite-Ca-Heulandite-Ca Series Gallery Search Photos of Clinoptilolite-Ca-Heulandite-Ca Series

Edit Clinoptilolite-Ca-Heulandite-Ca Series Add Synonym Edit CIF structures Clear Cache

Heulandite-Ca, etc.

Gunnedah, Pottinger Co., New South Wales, Australia

Heulandite-Ca, etc.

Jalgaon District, Nashik Division, Maharashtra, India

Heulandite-Ca

Pashan quarries, Pashan, Pune District, Pune Division, Maharashtra, India

Heulandite-Ca, etc.

Jalgaon District, Nashik Division, Maharashtra, India

Heulandite-Ca, etc.

Gunnedah, Pottinger Co., New South Wales, Australia

Heulandite-Ca, etc.

Jalgaon District, Nashik Division, Maharashtra, India

Heulandite-Ca

Pashan quarries, Pashan, Pune District, Pune Division, Maharashtra, India

Heulandite-Ca, etc.

Jalgaon District, Nashik Division, Maharashtra, India

Heulandite-Ca, etc.

Gunnedah, Pottinger Co., New South Wales, Australia

Heulandite-Ca, etc.

Jalgaon District, Nashik Division, Maharashtra, India

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About Clinoptilolite-Ca-Heulandite-Ca SeriesHide

Crystal System:

Monoclinic

Series Formula:

Ca₃(Si₃₀Al₆)O₇₂ · 20H₂O to (Ca,Na)₅(Si₂₇Al₉)O₇₂ · 26H₂O

A series between Clinoptilolite-Ca and Heulandite-Ca

Unique IdentifiersHide

Mindat ID:

8968

Long-form identifier:

mindat:1:1:8968:1

Crystallography of Clinoptilolite-Ca-Heulandite-Ca SeriesHide

Crystal System:

Monoclinic

Crystal StructureHide

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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure

ID	Species	Reference	Year	Locality	Pressure (GPa)	Temp (K)
0001304	Clinoptilolite-Ca	Smyth J R, Spaid A T, Bish D L (1990) Crystal structures of a natural and a Cs-exchanged clinoptilolite natural sample American Mineralogist 75 522-528	1990		0	293
0001547	Clinoptilolite-Ca	Armbruster T (1993) Dehydration mechanism of clinoptilolite and heulandite: Single-crystal X-ray study of Na-poor, Ca-, K-, Mg-rich clinoptilolite at 100 K Sample Natural Data obtained from the ICSD American Mineralogist 78 260-264	1993		0	293
0001548	Clinoptilolite-Ca	Armbruster T (1993) Dehydration mechanism of clinoptilolite and heulandite: Single-crystal X-ray study of Na-poor, Ca-, K-, Mg-rich clinoptilolite at 100 K Sample Dehyd 1 Data obtained from the ICSD American Mineralogist 78 260-264	1993		0	293
0006812	Clinoptilolite-Ca	Cappelletti P, Langella A, Cruciani G (1999) Crystal-chemistry and synchrotron Rietveld refinement of two different clinoptilolites from volcanoclastites of North-Western Sardinia European Journal of Mineralogy 11 1051-1060	1999	volcanoclastites of North-Western Sardinia	0	293
0006813	Clinoptilolite-Ca	Cappelletti P, Langella A, Cruciani G (1999) Crystal-chemistry and synchrotron Rietveld refinement of two different clinoptilolites from volcanoclastites of North-Western Sardinia European Journal of Mineralogy 11 1051-1060	1999	volcanoclastites of North-Western Sardinia	0	293
0010792	Clinoptilolite-Ca	Koyama K, Takeuchi Y (1977) Clinoptilolite: The distribution of potassium atoms and its role in thermal stability Zeitschrift fur Kristallographie 145 216-239	1977	Kuruma Pass, Fukushima Prefecture, Japan	0	293
0010793	Clinoptilolite-Ca	Koyama K, Takeuchi Y (1977) Clinoptilolite: The distribution of potassium atoms and its role in thermal stability Zeitschrift fur Kristallographie 145 216-239	1977	Agoura, California, USA	0	293
0015651	Clinoptilolite-Ca	Alberti A (1975) The crystal structure of two clinoptilolites Tschermaks Mineralogische und Petrographische Mitteilungen 22 25-37	1975	Agoura, California, USA	0	293
0000154	Heulandite-Ca	Merkle A B, Slaughter M (1967) The crystal structure of heulandite (Ca,Na2)[Al2Si7O18].6H2O American Mineralogist 52 273-276	1967		0	293
0000180	Heulandite-Ca	Merkle A B, Slaughter M (1968) Determination and refinement of the structure of heulandite American Mineralogist 53 1120-1138	1968		0	293
0000810	Heulandite-Ca	Mortier W J, Pearce J R (1981) Thermal stability of the heulandite-type framework: Crystal structure of the calcium/ammonium form dehydrated at 483K American Mineralogist 66 309-314	1981		0	293
0001668	Heulandite-Ca	Gunter M E, Armbruster T, Kohler T, Knowles C R (1994) Crystal structure and optical properties of Na- and Pb-exchanged heulandite-group zeolites Atomic parameters from ICSD American Mineralogist 79 675-682	1994		0	293
0006866	Heulandite-Ca	Comodi P, Gatta G D, Zanazzi P F (2001) High-pressure structural behaviour of heulandite European Journal of Mineralogy 13 497-505	2001		0.0001	293
0006867	Heulandite-Ca	Comodi P, Gatta G D, Zanazzi P F (2001) High-pressure structural behaviour of heulandite European Journal of Mineralogy 13 497-505	2001		1.45	293
0006868	Heulandite-Ca	Comodi P, Gatta G D, Zanazzi P F (2001) High-pressure structural behaviour of heulandite European Journal of Mineralogy 13 497-505	2001		3.4	293
0006869	Heulandite-Ca	Comodi P, Gatta G D, Zanazzi P F (2001) High-pressure structural behaviour of heulandite European Journal of Mineralogy 13 497-505	2001		0.0001	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Clinoptilolite-Ca'
loop_
_publ_author_name
'Smyth J R'
'Spaid A T'
'Bish D L'
_journal_name_full 'American Mineralogist'
_journal_volume 75 
_journal_year 1990
_journal_page_first 522
_journal_page_last 528
_publ_section_title
;
 Crystal structures of a natural and a Cs-exchanged clinoptilolite
 natural sample
;
_database_code_amcsd 0001304
_chemical_formula_sum '(Si15.26 Al2.74) Na1.78 Ca1.78 K1.28 O45.58 H19.16'
_cell_length_a 17.633
_cell_length_b 17.941
_cell_length_c 7.400
_cell_angle_alpha 90
_cell_angle_beta 116.39
_cell_angle_gamma 90
_cell_volume 2097.058
_exptl_crystal_density_diffrn      2.238
_symmetry_space_group_name_H-M 'C 1 2/m 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,z'
  'x,-y,z'
  '1/2+x,1/2-y,z'
  '-x,y,-z'
  '1/2-x,1/2+y,-z'
  '-x,-y,-z'
  '1/2-x,1/2-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
Si1   0.17890   0.17050   0.09530   0.87000
Al1   0.17890   0.17050   0.09530   0.13000
Si2   0.21310   0.41040   0.50300   0.67000
Al2   0.21310   0.41040   0.50300   0.33000
Si3   0.20800   0.19070   0.71520   0.90000
Al3   0.20800   0.19070   0.71520   0.10000
Si4   0.06540   0.29890   0.41290   0.92000
Al4   0.06540   0.29890   0.41290   0.08000
Si5   0.00000   0.21600   0.00000   0.91000
Al5   0.00000   0.21600   0.00000   0.09000
Na1   0.14780   0.00000   0.66610   0.50000
Ca1   0.14780   0.00000   0.66610   0.50000
Na2   0.04040   0.50000   0.21670   0.39000
Ca2   0.04040   0.50000   0.21670   0.39000
K3   0.23440   0.50000   0.02520   0.64000
O1   0.19730   0.50000   0.45710   1.00000
O2   0.23200   0.12120   0.61380   1.00000
O3   0.18350   0.15650   0.88590   1.00000
O4   0.23560   0.10650   0.25180   1.00000
O5   0.00000   0.32450   0.50000   1.00000
O6   0.08110   0.16140   0.05700   1.00000
O7   0.12740   0.23430   0.54840   1.00000
O8   0.01100   0.26820   0.18570   1.00000
O9   0.21190   0.25340   0.18300   1.00000
O10   0.11740   0.37230   0.40790   1.00000
Wat2   0.07980   0.00000   0.85310   0.98000
Wat3   0.07980   0.41900   0.96550   0.89000
Wat4   0.00000   0.50000   0.50000   1.00000
Wat5   0.02020   0.09010   0.52500   0.36000
Wat6   0.08650   0.00000   0.26540   0.81000
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
Si1 0.00784 0.01696 0.01558 -0.00057 0.00334 0.00108
Al1 0.00784 0.01696 0.01558 -0.00057 0.00334 0.00108
Si2 0.01163 0.01174 0.01803 0.00086 0.00461 0.00018
Al2 0.01163 0.01174 0.01803 0.00086 0.00461 0.00018
Si3 0.01100 0.01517 0.01491 0.00029 0.00430 0.00042
Al3 0.01100 0.01517 0.01491 0.00029 0.00430 0.00042
Si4 0.00822 0.01680 0.01581 0.00000 0.00350 0.00060
Al4 0.00822 0.01680 0.01581 0.00000 0.00350 0.00060
Si5 0.00569 0.01892 0.01603 0.00000 0.00159 0.00000
Al5 0.00569 0.01892 0.01603 0.00000 0.00159 0.00000
Na1 0.09480 0.04403 0.07124 0.00000 0.02758 0.00000
Ca1 0.09480 0.04403 0.07124 0.00000 0.02758 0.00000
Na2 0.01896 0.03587 0.06522 0.00000 -0.00212 0.00000
Ca2 0.01896 0.03587 0.06522 0.00000 -0.00212 0.00000
K3 0.14662 0.06033 0.17364 0.00000 0.11564 0.00000
O1 0.03665 0.01305 0.04007 0.00000 0.00955 0.00000
O2 0.02781 0.03261 0.03540 -0.00431 0.01750 -0.01145
O3 0.03665 0.03424 0.03072 -0.00431 0.01538 -0.00060
O4 0.02781 0.02935 0.03250 0.01005 0.01273 0.00241
O5 0.03286 0.03914 0.04719 0.00000 0.02546 0.00000
O6 0.01138 0.02446 0.04163 -0.00144 0.00902 -0.00060
O7 0.03160 0.04077 0.03629 0.01005 0.00053 0.00904
O8 0.02149 0.04240 0.03295 0.00287 0.00796 -0.01024
O9 0.01896 0.02446 0.04430 -0.00718 0.01220 -0.00843
O10 0.02022 0.02609 0.04452 -0.00718 0.01379 -0.00120
Wat2 0.19971 0.17122 0.57211 0.00000 -0.01963 0.00000
Wat3 0.07584 0.07338 0.08571 -0.01005 -0.00318 0.01928
Wat4 0.07331 0.05707 0.12511 0.00000 0.04350 0.00000
Wat5 0.05309 0.10925 0.32946 -0.03158 -0.00424 0.07591
Wat6 0.10744 0.14676 0.22484 0.00000 0.08434 0.00000

Common AssociatesHide

Associated Minerals Based on Photo Data:

2 photos of Clinoptilolite-Ca-Heulandite-Ca Series associated with Celadonite	K(MgFe³⁺◻)(Si₄O₁₀)(OH)₂
1 photo of Clinoptilolite-Ca-Heulandite-Ca Series associated with Siderite	FeCO₃

Other InformationHide

Health Risks:

No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for Clinoptilolite-Ca-Heulandite-Ca SeriesHide

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References for Clinoptilolite-Ca-Heulandite-Ca SeriesHide

Reference List:

Alietti, Andrea (1972) Polymorphism and crystal-chemistry of heulandites and clinoptilolites. American Mineralogist, 57 (9-10) 1448-1462

Localities for Clinoptilolite-Ca-Heulandite-Ca SeriesHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the

symbol to view information about a locality. The

symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed.

- This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality.

- Good crystals or important locality for species.

- World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). ~~Struck out~~ - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.


Argentina
Chubut Province Paso de Indios Department ⓘ Cerro Cóndor	[Clinoptilolite-Ca] Estrada et al. (2002)
ⓘ Zeolite occurrence	[Heulandite-Ca] Estrada et al. (2002)
Neuquén Province Los Lagos Department ⓘ Paso del Córdoba	[Clinoptilolite-Ca] Pablo Rodrigo Leal et al. (2011)
Santa Cruz Province Deseado Department Bosques Petrificados de Jaramillo National Park ⓘ Cerro Madre e Hija	[Heulandite-Ca] G. Aliotta et al. (1996)

Armenia
Tavush Province Ijevan ⓘ Idzhevanskoe bentonite deposit	[Clinoptilolite-Ca] Pavel.M. Kartashov (n.d.)

Australia
New South Wales Pottinger Co. ⓘ Garrawilla Station	[Heulandite-Ca] RRUFF Database - File RO60465
Victoria Bass Coast Shire ⓘ Phillip Island	[Heulandite-Ca] Birch (1989)

Austria
Carinthia Wolfsberg District Frantschach-Sankt Gertraud ⓘ Gösler Hütte	[Heulandite-Ca] Carinthia II (2013)
Lower Austria Krems-Land District Lichtenau im Waldviertel ⓘ Loiwein	[Heulandite-Ca] Kolitsch (2016)
Maria Laach am Jauerling Felbring ⓘ Siebenhandl quarry (Kraxnerklippe)	Kolitsch et al. (2016)
Zintring ⓘ Unnamed quarry	[Clinoptilolite-Ca] Kolitsch et al. (2012)
ⓘ Zeolite occurrence	Harald Schillhammer collection
Paudorf Meidling ⓘ Granulite quarry (Asamer quarry; Wanko gravel works)	[Heulandite-Ca] Kolitsch et al. (2023)
Rossatz-Arnsdorf St Johann im Mauerthale ⓘ Gerichtsgraben	Kiesewetter et al. (2003)
Melk District Persenbeug-Gottsdorf Loja ⓘ Quarry IV- Southern Area	[Heulandite-Ca] Löffler et al. (2011)
Pöchlarn ⓘ Lasselsberger quarry	[Heulandite-Ca] Knobloch et al. (2021)
Waidhofen an der Thaya District Raabs an der Thaya Eibenstein an der Thaya ⓘ Hengl quarry	[Clinoptilolite-Ca] Kolitsch et al. (2015)
Zwettl District Kottes-Purk Tretelhof ⓘ Gabbro quarry	[Heulandite-Ca] Kolitsch et al. (2022)
Styria Deutschlandsberg District Stainz Marhof ⓘ Rath quarry	[Heulandite-Ca] Postl (2007)
Tyrol Landeck District Kaunertal Vergötschen ⓘ Lower Gsall valley	[Heulandite-Ca] Bernhard (2009)
Upper Austria Grieskirchen District Waizenkirchen Weinzierlbruck ⓘ Huemer/Mayr sand pit	Schachinger et al. (2008)
Schärding District Enzenkirchen ⓘ Gneiss quarry	Kolitsch et al. (2008)
Urfahr-Umgebung District Steyregg Plesching ⓘ Rappetsederrücken	Schachinger et al. (2008)
ⓘ Sand pit	Schachinger et al. (2008)
Vorarlberg Bludenz District Gaschurn Ochsen valley ⓘ Kleine Schattenspitze	[Heulandite-Ca] Kolitsch (2022)
Sankt Gallenkirch Gargellen valley Gargellen ⓘ Schafberg - Gargellner Köpfe area	[Heulandite-Ca] Kolitsch (2017) +1 other reference
ⓘ Madererspitze (Valschavieler Maderer)	[Heulandite-Ca] Kolitsch (2014)
Schruns ⓘ Sennigrat-Kreuzjoch-Hochjoch area	[Heulandite-Ca] Kolitsch (2017)

Brazil
Minas Gerais Divino das Laranjeiras ⓘ Linópolis	[Heulandite-Ca] Lavinsky (n.d.)
Rio Grande do Sul ⓘ Vista Alegre	[Heulandite-Ca] Pinto V. et al. (2011)
São Paulo Pederneiras Pederneiras ⓘ Nova Fortaleza quarry	[Heulandite-Ca] Färber (n.d.)
Serrana ⓘ Serrana quarry	[Heulandite-Ca] Ruiz (2001)

Bulgaria
Kardzhali Province Momchilgrad Municipality Zvezdel ⓘ Dachiardite-K occurrence	[Clinoptilolite-Ca] Encheva

Canada
New Brunswick Charlotte Co. Grand Manan Island ⓘ Deep Cove Beach	[Heulandite-Ca] King (n.d.)
Eel Brook Beach ⓘ Seven Days Work Cliff	[Heulandite-Ca] Grand Manan Museum
ⓘ Harrington Cove (Herrington Cove)	[Heulandite-Ca] Grand Manan Museum
ⓘ The Whistle	[Heulandite-Ca] King (n.d.)
ⓘ Whale Cove Cliffs	[Heulandite-Ca] Sabina (2015)
Northwest Territories Mackenzie Mountains Tungsten (Cantung) ⓘ Little Nahanni Pegmatite Group	[Heulandite-Ca] Groat et al. (2003)
Nova Scotia Cumberland Co. Two Islands ⓘ Wasson Bluff	[Clinoptilolite-Ca] Pe-Piper et al. (2002)
Digby Co. ⓘ Digby Gut	[Heulandite-Ca] Walker et al. (1922)
Digby Neck ⓘ East Sandy Cove	[Heulandite-Ca] Traill (1970)
Kings Co. ⓘ Arlington quarry	[Clinoptilolite-Ca] Pe-Piper et al. (2002)
ⓘ Glenmont	[Heulandite-Ca] Ronnie Van Dommelen collection.
ⓘ Long Beach	[Heulandite-Ca] Lavinsky (n.d.)
ⓘ Morden	[Clinoptilolite-Ca] Pe-Piper (2000)
ⓘ Ross Creek	[Clinoptilolite-Ca] Pe-Piper (2000)
Yarmouth Co. Argyle East Kemptville ⓘ East Kemptville Tin-Indium Project (East Kemptville Tin Mine)	[Heulandite-Ca] Ronnie Van Dommelen collection. Kerry ...
Ontario Timiskaming District Cobalt-Gowganda region South Lorrain Township ⓘ Keeley-Frontier Mine	[Clinoptilolite-Ca] Reiner Mielke 2016
Québec Laurentides Argenteuil RCM Harrington ⓘ White Road roadcut (Mathilda Lake roadcut)	[Heulandite-Ca] Van Velthuizen et al. (2006)
Wentworth Laurel ⓘ Unnamed roadcut (Locality 48 of Van Velthuizen et al)	[Clinoptilolite-Ca] Van Velthuizen et al. (2006)
Montérégie La Vallée-du-Richelieu RCM Mont Saint-Hilaire ⓘ Poudrette quarry (De-Mix quarry; Demix quarry; Uni-Mix quarry; Carrière Mont Saint-Hilaire; MSH)	[Clinoptilolite-Ca] Horváth collection XRD & EMPA EDS
Outaouais La Vallée-de-la-Gatineau RCM Lac-Pythonga Maniwaki occurrences ⓘ Zeolite occurrence #34	[Heulandite-Ca] Van Velthuizen et al. (2006)
Les Collines-de-l'Outaouais RCM Chelsea Autoroute 5 Autoroute 5 extension Autoroute 5 roadcuts ⓘ Roadcut No. 6	[Heulandite-Ca] Horváth collection
Val-des-Monts Lac Saint Antoine ⓘ Seybold (Moore) Mine	[Heulandite-Ca] Van Velthuizen et al. (2006)
Pontiac RCM Otter Lake ⓘ Yates Mine	[Heulandite-Ca] Lafontaine (1979) +1 other reference

Costa Rica
San José Province Puriscal Canton Candelarita District ⓘ Pedernal Road cuts	[Heulandite-Ca] Carnegie Museum of Natural History ...

Cyprus
Larnaca District Athienou ⓘ Avhellero (Avdellero)	[Clinoptilolite-Ca] Prüfer (2010)

Czech Republic
Central Bohemian Region Kladno District ⓘ Vinařice	[Heulandite-Ca] Bohuslav Bures photo and specimen (confirmed by PXRD and EMPA WDS) +2 other references
Hradec Králové Region Jičín District Železnice Doubravice ⓘ Doubravice quarry	[Heulandite-Ca] Zeman +4 other references
Liberec Region Česká Lípa District Česká Lípa Stará Lípa ⓘ Špičák	[Heulandite-Ca] P.Pauliš et al. (2014) +1 other reference
ⓘ Malý Jelení vrch(Mt.)	[Heulandite-Ca] - (n.d.)
Provodín ⓘ Michlův hill quarry	[Heulandite-Ca] Erionite-Ca from the Michlův hill near ...
Svor ⓘ Unnamed hill	[Heulandite-Ca] Pauliš et al. (2016)
Jablonec nad Nisou District Frýdštejn Bezděčín ⓘ Bezděčín quarry	[Heulandite-Ca]
Moravian-Silesian Region Nový Jičín District Skotnice ⓘ Hončova hůrka Hill	[Clinoptilolite-Ca] Pour et al. (2025)
Olomouc Region Šumperk District Hraběšice ⓘ Krásné	[Heulandite-Ca] Novotný +2 other references
Loučná nad Desnou Kouty nad Desnou ⓘ Červenohorské sedlo	[Heulandite-Ca] Novotný
Šumperk Temenice Dolní Temenice ⓘ Senová (Heukoppe; Hegerwald)	[Heulandite-Ca] Novotný
Horní Temenice ⓘ Lovák	[Heulandite-Ca] Novotný
Velké Losiny Maršíkov (Marchendorf) ⓘ Kožušná (Fellberg)	[Heulandite-Ca] Novotný
Vikýřovice ⓘ Holubí vrch	[Heulandite-Ca] Novotný
Pardubice Region Pardubice District ⓘ Chvaletice	[Heulandite-Ca] PAULIŠ et al. (2022)
Ústí nad Labem Region Děčín District Česká Kamenice ⓘ Jehla (Nolde; Kleine Nolde)	[Heulandite-Ca] Pauliš et al. (2015) +1 other reference
Krásná Lípa ⓘ Vápenka	[Clinoptilolite-Ca] P.Pauliš et al. (2014)
Těchlovice ⓘ Milířsko	[Heulandite-Ca] Bulletin Mineralogie Petrologie vol.26
Ústí nad Labem District Ústí nad Labem Sebuzin (Sebusein) ⓘ Rytina souteska (Ritinatal)	[Heulandite-Ca] Dvorák et al. (2017)
Vysočina Region Žďár nad Sázavou District ⓘ Strážek (Straschkau)	[Heulandite-Ca] Novák et al. (2023)

Ecuador
Guayas Province Guayaquil Canton ⓘ Guayaquil	[Heulandite-Ca] R. S. Bowman and S. E. Delap (Eds.)
Isidro Ayora Canton ⓘ Isidro Ayora	[Heulandite-Ca] R. S. Bowman and S. E. Delap (Eds.)

France
Auvergne-Rhône-Alpes Savoie Albertville La Léchère Bonneval-Tarentaise ⓘ Roche Brisée	[Heulandite-Ca] Bernard (2011)
Pussy ⓘ La Gorraz	[Heulandite-Ca] De Ascenção Guedes et al. (2002)
French Southern and Antarctic Lands Kerguelen Islands ⓘ Grande Terre island	[Clinoptilolite-Ca] Renac et al. (2010)

Germany
Bavaria Lower Bavaria Freyung-Grafenau District Röhrnbach ⓘ Steinerleinbach Quarry	[Clinoptilolite-Ca] Habel (2009)
Hesse Darmstadt Darmstadt-Dieburg Mühltal ⓘ Nieder-Beerbach	[Clinoptilolite-Ca] Belendorff (2021)
ⓘ Nieder-Ramstadt	[Heulandite-Ca] Belendorff (2021)
ⓘ Wingertsberg Quarry	[Clinoptilolite-Ca] Belendorff (2021)
Lower Saxony Goslar District Braunlage St Andreasberg Beerberg ⓘ St Andreaskreuz Mine	[Heulandite-Ca] Weiß (1990)
ⓘ Samson Mine	[Heulandite-Ca]
Peine District Ilsede ⓘ Bülten-Adenstedt Mine	[Heulandite-Ca] Weiß (1990)
Lengede ⓘ Lengede-Broistedt mine	[Heulandite-Ca] Weiß (1990)
Rhineland-Palatinate Birkenfeld Baumholder Baumholder ⓘ Hubertusruhe quarry	[Heulandite-Ca] Weiß (1990)
Heimbach ⓘ Roadcut for windmill constructions	[Heulandite-Ca] Thomas Kleser Collection +2 other references
Saxony Görlitz District Ebersbach-Neugersdorf ⓘ Klunst Quarry	[Heulandite-Ca] Gerstenberg (n.d.)
Thuringia Saale-Orla District Wurzbach Weitisberga ⓘ Henneberg Quarry	[Heulandite-Ca] Wittern (2001)

Greece
Eastern Macedonia and Thrace Evros Soufli ⓘ Kornofolia	[Clinoptilolite-Ca] Voudouris et al. (2018)

Hungary
Baranya County Komló District Magyaregregy ⓘ Márévári Valley	[Heulandite-Ca] Sándor et al. (2005)
ⓘ Síngödör Valley	[Heulandite-Ca] Sándor et al. (2005)
Borsod-Abaúj-Zemplén County Szerencs District Rátka ⓘ Quarry by the railway	[Clinoptilolite-Ca] WDS: Norbert Zajzon
Heves County Gyöngyös District Kisnána ⓘ Hátsó Tarnóca Quarry	[Clinoptilolite-Ca] GEODA
ⓘ Mátraszentimre	[Heulandite-Ca] Szakáll (2002)
Veszprém County Veszprém District ⓘ Hárskút	[Clinoptilolite-Ca] Sándor et al. (2005)

Iceland
Capital Region Kjósarhreppur ⓘ Eyrarfjall Mountain	[Heulandite-Ca] Weisenberger et al. (2009)
ⓘ Hvalfjarðareyri (Hvaleyri)	[Heulandite-Ca] Weisenberger et al. (2009)
Eastern Region Fjarðabyggð Neskaupstaður ⓘ Quarry at Oddskarðsvegur	[Heulandite-Ca] Personally collected by Günter Frenz
Múlaþing Djúpavogshreppur Berufjörður ⓘ Teigarhorn	[Heulandite-Ca] Zeolite collection of Volker Betz +1 other reference
ⓘ Hvalfjörður	[Heulandite-Ca] Weisenberger et al. (2009)
Northwestern Region Sveitarfélagið Skagafjörður Sauðárkrókur ⓘ Vestari Heraðsvötn	[Heulandite-Ca] Personally collected by Günter Frenz

India
Maharashtra Chhatrapati Sambhajinagar Division (Aurangabad Division) Chhatrapati Sambhajinagar District (Aurangabad District) ⓘ Vaijapur	[Heulandite-Ca] Tony Nichisher
Nashik Division ⓘ Ahilyanagar District	[Heulandite-Ca] ...
Rahta (Rahata) ⓘ Puntamba	[Heulandite-Ca] Lavinsky (n.d.)
ⓘ Jalgaon District	[Heulandite-Ca] Verlag Ch.Weise (in German) +2 other references
ⓘ Nashik District	[Heulandite-Ca] Verlag Ch.Weise (in German) +1 other reference
Pune Division Pune District ⓘ Erandwane	[Heulandite-Ca] Arnav Khokarale Collection
Junnar ⓘ Narayangaon	[Heulandite-Ca] Arnav Khokarale Collection
ⓘ Kothrud	[Heulandite-Ca] Arnav Khokarale Collection
Lonavale (Lonavala) ⓘ Lonavala Quarry	[Heulandite-Ca] Praszkier et al. (2007) +1 other reference
ⓘ Moshi Quarries ?	[Heulandite-Ca] Arnav Khokarale Collection
Pashan ⓘ Pashan quarries	[Heulandite-Ca] Rock Currier photo
ⓘ Sus ?	[Heulandite-Ca] Arnav Khokarale Collection
ⓘ Rajgurunagar	[Heulandite-Ca] Arnav Khokarale Collection
Wagholi ⓘ Wagholi Quarries	[Heulandite-Ca] Ottens et al. (2025)

Indian Ocean
Ninety East Ridge (90° E Ridge; Indian Ridge) D.S.D.P. Leg 26 ⓘ Site 253	[Clinoptilolite-Ca] D. Besse et al.

Iran
Qom Province ⓘ Kahrizak Mountains	[Heulandite-Ca] Kousehlar et al. (2012)
Tehran Province ⓘ Kuh-e-Aradeh	[Heulandite-Ca] Bazargani-Guilani et al. (2004)

Ireland
Connacht Galway County Connemara ⓘ Barnahallia	[Heulandite-Ca] Moreton et al. (2006)

Israel
Southern District Beersheba Subdistrict Tamar Regional Council Hatrurim Basin ⓘ Har Ye'elim	[Clinoptilolite-Ca] Kruszewski et al. (2021)

Italy
Aosta Valley Courmayeur ⓘ Brenva Glacier	[Heulandite-Ca] Piccoli et al. (2007)
ⓘ Lex Blanche Glacier	[Heulandite-Ca] Piccoli et al. (2007)
ⓘ Miage Glacier	[Heulandite-Ca] Piccoli et al. (2007)
ⓘ Petit Mont Blanc	[Heulandite-Ca] Piccoli et al. (2007)
Liguria La Spezia Province Levanto ⓘ Costa Sopramare (Cantarana Valley)	[Heulandite-Ca] Bracco R. et al. (2005)
Lombardy Sondrio Province Chiesa in Valmalenco ⓘ Sissone Valley	[Heulandite-Ca] Marchesini et al. (2025)
Novate Mezzola Codera Valley ⓘ Averta Valley (Northern Glacial Cirque)	[Heulandite-Ca] Ghizzoni et al. (2005)
ⓘ Grosina Valley	[Heulandite-Ca] Ghizzoni et al. (2005)
ⓘ Piana Valley	[Heulandite-Ca] Ghizzoni et al. (2005)
ⓘ Punta Trubinasca	[Heulandite-Ca] Ghizzoni et al. (2005)
ⓘ San Giorgio	[Heulandite-Ca] Ghizzoni et al. (2005)
Valdidentro ⓘ Upper Val Lia	[Heulandite-Ca] Bedognè et al. (2006)
Piedmont Biella Province Campiglia Cervo ⓘ Quittengo	[Heulandite-Ca] Piccoli et al. (2007)
ⓘ Gamma Quarry	[Heulandite-Ca] Piccoli et al. (2007)
San Paolo Cervo ⓘ Colombari quarry	[Heulandite-Ca] Martini et al. (2012)
ⓘ Vej della Balma	[Heulandite-Ca] Martini et al. (2012)
Rosazza ⓘ Rosazza Quarry	[Heulandite-Ca] Piccoli et al. (2007)
Cuneo Province Bagnolo Piemonte ⓘ Montoso Quarries	[Heulandite-Ca] Piccoli et al. (2007)
ⓘ Bricco Volti - Monte Ortieul quarrying area	[Heulandite-Ca] Piccoli et al. (2007) +1 other reference
Metropolitan City of Turin ⓘ Luserna Stone Quarries	[Heulandite-Ca] Ambrino et al. (2009)
Prali ⓘ Envie Lake	[Heulandite-Ca] Piccoli et al. (2007)
Traversella ⓘ Bracco Quarry	[Heulandite-Ca] Franco Luca Bonino's collection
ⓘ Las Superiore Quarry	[Heulandite-Ca] Silvio Bianco et al. (2024) +2 other references
Verbano-Cusio-Ossola Province Beura-Cardezza ⓘ Beura quarries	[Heulandite-Ca] Piccoli et al. (2007)
Formazza Vallone del Vannino ⓘ Forno Glacier	[Heulandite-Ca] Mattioli V. (1976) +2 other references
Premia Premia gneiss quarries ⓘ Cadarese Quarries	[Heulandite-Ca] Piccoli et al. (2007)
ⓘ Premosello-Chiovenda	[Heulandite-Ca] Piccoli et al. (2007)
Sardinia Metropolitan City of Cagliari Pula ⓘ Capo di Pula (Capo Pula; Nora)	[Heulandite-Ca] Pongiluppi et al. (1974) +3 other references
ⓘ Sant' Efisio Tower (Punta del Coltellazzo)	[Heulandite-Ca] Pongiluppi et al. (1974) +3 other references
ⓘ Viale Europa roadcut	[Heulandite-Ca] Pongiluppi et al. (1974)
Sassari Province Arzachena Mt. Mazzolu ⓘ Lu Patenti Quarry	[Heulandite-Ca] Gamboni et al. (2012)
ⓘ Mt. Mazzolu Quarry	[Heulandite-Ca] S. Cuccuru (2011)
Trentino-Alto Adige/Südtirol South Tyrol Salten-Schlern (Salto-Sciliar) Kastelruth (Castelrotto) ⓘ Forra di Bulla (Puflerloch; Pufler Loch; Pufelserloch; Pufelser Loch; Bulla; Pufels)	[Heulandite-Ca] Passaglia (1972) +5 other references
Trento Province Canazei ⓘ Belvedere-Padòn Range	[Heulandite-Ca] Exel (1980) +3 other references
Mazzin ⓘ Drio le Pale (Do' le Pale; Do' le Pele)	[Clinoptilolite-Ca] Gramaccioli (1975) +2 other references
Moena ⓘ Pale Rabbiose	[Heulandite-Ca] Ferretti et al. (2013)
Veneto ⓘ Alpone Valley	[Heulandite-Ca] Mattioli et al. (2016)
Belluno Province Rocca Pietore Pettorina Valley Sottoguda-Palue area ⓘ Ru della Miniera	[Heulandite-Ca] Andrea Canal collection. Performed analyses : XRD at the laboratory of ENI-Versalis (Porto Marghera)
Verona Province Soave Fittà ⓘ Mount Foscarinetto	[Heulandite-Ca] Paolo Gasparetto Collection
ⓘ South slope	[Heulandite-Ca] Pegoraro et al. (2017)
Vicenza Province Arzignano Monte Main ⓘ Main Quarry	[Heulandite-Ca] Boscardin (2002) +3 other references
Cornedo Vicentino Spagnago ⓘ Grolla quarry	[Heulandite-Ca] Boscardin et al. (2011) +1 other reference
Montorso Vicentino Contrada Nori ⓘ Monte Scagno	[Heulandite-Ca] Boscardin (2002) +2 other references
Santorso ⓘ Near Albero Bassi locality	[Heulandite-Ca] www.tron.vi.it (2001) +1 other reference
Schio Monte Magrè ⓘ Contrada Lebena	[Heulandite-Ca] Boscardin et al. (2011)
ⓘ Timonchiello Creek (Rio Timonchiello)	[Heulandite-Ca] Della Costa (2014)
Tretto San Rocco di Tretto (San Rocco) ⓘ Contrada Gonzati	[Heulandite-Ca] Carbonin et al. (2003) +3 other references
ⓘ Contrada Lovati	[Heulandite-Ca] Carbonin et al. (2003) +3 other references

Japan
Ehime Prefecture Kamiukena District ⓘ Makinokawa quarry	[Heulandite-Ca] Mark Mauthner collection No. 382 (originally collected by Dr. Atsushi Gomi)
Fukuoka Prefecture ⓘ Munakata City	[Clinoptilolite-Ca] Nendo Kagaku v.30 (1990)
Fukushima Prefecture ⓘ Kuruma Pass	[Clinoptilolite-Ca] Koyama et al. (1977) +1 other reference
Kanagawa Prefecture Ashigarashimo District Yugawara ⓘ Yugawara Hot Spring	[Heulandite-Ca] Harada et al (1969)
Shizuoka Prefecture Kamo district Kawazu ⓘ Yanda ?	[Clinoptilolite-Ca] PXRD + XRF by Alfredo Petrov
Tokyo Metropolis Ogasawara Subprefecture Ogasawara Islands Chichijima Group ⓘ Chichi Island (Chichijima)	[Heulandite-Ca] Mineralogical Journal Vol. 11 (1982)

Madagascar
Sava Sambava District Ambohimalaza Commune Ambariomiambana ⓘ Basalt Quarry	[Heulandite-Ca] Praszkier (2010)

Mexico
Chihuahua Batopilas Municipality Andrés del Rio mining district ⓘ Batopilas	[Heulandite-Ca] Wilson et al. (1986)
Veracruz Las Vigas de Ramírez Municipality ⓘ Pegmatite Zone	[Heulandite-Ca] Peter Megaw specimens
Tatatila Municipality ⓘ Piedra Parada	[Heulandite-Ca] Megaw (2023)
Tatatila La Mancuerna ⓘ Zeolite-Pegmatite Occurrence	[Heulandite-Ca] Megaw (2023)

New Zealand
Auckland Region Waitakere Ranges ⓘ Bethells Beach	[Heulandite-Ca] T. Saunderson collection +1 other reference
ⓘ Waitakere River	[Heulandite-Ca] T. Saunderson collection
Canterbury Region Selwyn District ⓘ Rakaia Gorge	[Clinoptilolite-Ca] S. J. Mills
Northland Region Kaipara District Hukatere Peninsula ⓘ Hukatere Volcano	[Clinoptilolite-Ca] T. Saunderson collection
Waikato Region Thames-Coromandel District Coromandel peninsula Whitianga ⓘ Whitianga Quarry	[Clinoptilolite-Ca] S. J. Mills

Norway
Agder Arendal Austre Moland ⓘ Haslestad	[Heulandite-Ca] Nordrum et al. (2005)
Barbudalen Steinsås ⓘ Langsæv Mine	[Heulandite-Ca] Nordrum et al. (2003)
Bygland ⓘ Hamre Copper Mine	[Heulandite-Ca] Breivik (2017)
Evje og Hornnes Flåt ⓘ Flåt Nickel Mines	[Heulandite-Ca] Frigstad (1985) +1 other reference
Iveland Ljosland ⓘ Storsynken (Ljosland 10 Feldspar Quarry)	[Heulandite-Ca] Breivik et al. (2010)
Akershus Asker ⓘ Vardåsen Tunnel	[Heulandite-Ca] Stensrud (2004) +1 other reference
Eidsvoll Feiring ⓘ Pålshaugen Iron Mines	[Heulandite-Ca] Nordrum et al. (2005)
Lunner Øståsen ⓘ Midtmoen	[Heulandite-Ca] Nordrum et al. (2005)
Nittedal ⓘ Bjønndalen Quarry	[Heulandite-Ca] Nordrum et al. (2003)
Buskerud Drammen Gulskogen ⓘ Haukåsen	[Heulandite-Ca] Nordrum et al. (2005)
Mjøndalen ⓘ Lauvtjern	[Heulandite-Ca] Nordrum et al. (2003) +1 other reference
ⓘ Myrseter area	[Heulandite-Ca] Nordrum et al. (2005)
Flesberg Svene ⓘ Anna Sophie Mines	[Heulandite-Ca] Nordrum et al. (2003)
Vinoren Silver Mine Field Vinoren Southern Mines ⓘ Ringnesgangen Mine	[Heulandite-Ca] Nordrum et al. (2003)
Lier Lierskogen ⓘ Lierskogen Quarry	[Heulandite-Ca] Eldjarn (1973) +1 other reference
ⓘ Sørvollen	[Heulandite-Ca] Nordrum et al. (2005)
Sylling ⓘ Hørtekollen	[Heulandite-Ca] Nordrum et al. (2003)
Øvre Eiker ⓘ Fiskeløs prospect	[Heulandite-Ca] Nordrum et al. (2003)
Innlandet Lom ⓘ Trono-odden	[Heulandite-Ca] Nordrum et al. (2005)
Øystre Slidre ⓘ Sandvasslia	[Heulandite-Ca] Nordrum et al. (2005)
Tynset ⓘ Dølvadseter	[Heulandite-Ca] Nordrum et al. (2005)
Vang ⓘ Tyin	[Heulandite-Ca] Nordrum et al. (2005)
Nordland Fauske Sulitjelma ⓘ Sulitjelma Copper Mines	[Heulandite-Ca] Nordrum +1 other reference
Grane ⓘ Majavatn	[Heulandite-Ca] Nordrum +1 other reference
Sørfold ⓘ Tennvatn pegmatite	[Heulandite-Ca] Ellingsen et al. (1995) +1 other reference
Oslo Grorud ⓘ Huken Quarry	[Heulandite-Ca] Nordrum et al. (2005)
Telemark Kragerø Valberg ⓘ Valberg Quarry	[Heulandite-Ca] Nordrum et al. (2003)
Porsgrunn Auenlandet Sagåsen ⓘ Sagåsen Quarry	[Heulandite-Ca] Larsen et al. (2005)
Troms og Finnmark Tromsø Kvaløya ⓘ Kattfjordeidet	[Heulandite-Ca] Nordrum (2008)
Trøndelag Oppdal ⓘ Åmotsdalen	[Heulandite-Ca] Nordrum et al. (2005)
Trollheimen ⓘ Blåhø	[Heulandite-Ca] Nordrum et al. (2005)
Rennebu ⓘ Innset	[Heulandite-Ca] Nordrum +1 other reference
Vestfold Holmestrand ⓘ Bentsrud (Solumbrekka)	[Heulandite-Ca] Nordrum et al. (2005)
Botne ⓘ Bjerkeli residental area	[Heulandite-Ca] Nordrum et al. (2006)
Helland ⓘ Brekke Tunnel	[Heulandite-Ca] Nordrum +2 other references
ⓘ Reggestad	[Heulandite-Ca] Nordrum et al. (2005)
Horten Borre Falkensten ⓘ Falkenstensvingen	[Heulandite-Ca] Nordrum et al. (2005)
Larvik Commune Tjølling Håkestad ⓘ Håkestad Quarry	[Heulandite-Ca] Larsen (2002)
Klåstad ⓘ Hasle Quarry	[Heulandite-Ca] Larsen (2002)
ⓘ Klåstad Quarry	[Heulandite-Ca] Larsen et al. (2010)
Stålaker ⓘ Stålaker Quarry	[Heulandite-Ca] Larsen et al. (2010)
Tvedalen ⓘ Bjørndalen Quarry (Lundhs labrador)	[Heulandite-Ca] Larsen (2002) +1 other reference
ⓘ Røyås Quarry	[Heulandite-Ca] Larsen (2002)
Sandefjord Vesterøya ⓘ Buer	[Heulandite-Ca] Nordrum et al. (2003)
Vestland ⓘ Årdal	[Heulandite-Ca] Nordrum et al. (2005)
Luster Berdalen Hurrungane ⓘ Berdalsbandet Pegmatites	[Heulandite-Ca] Nordrum et al. (2005)
Osterøy ⓘ Road cut	[Heulandite-Ca] Nordrum +1 other reference
Sunnfjord ⓘ Naustdal	[Heulandite-Ca] Nordrum +1 other reference

Peru
Lima Huaura Province Sayán District Sayán ⓘ Axinite-(Fe) occurrence	[Heulandite-Ca] Hyrsl (2013)

Philippines
Luzon Ilocos Region Pangasinan Province Mangatarem ⓘ Saile Mine	[Heulandite-Ca] Olegario-Sanchez et al. (2017, December)

Poland
Lesser Poland Voivodeship Chrzanów County Gmina Alwernia ⓘ Poręba-Żegoty	[Heulandite-Ca] Pusch (1833) +2 other references
ⓘ Regulice quarry	[Heulandite-Ca] Kreutz S. (1931) +1 other reference
Kraków County Gmina Krzeszowice ⓘ Rudno	[Heulandite-Ca] Piekarska E. (1954)
Lower Silesian Voivodeship Karkonosze County Piechowice ⓘ Michałowice granite quarry	[Heulandite-Ca] Krzysztof Andrzejewski
Świdnica County Gmina Strzegom Żółkiewka ⓘ Andrzej I quarry	[Heulandite-Ca] Janeczek (1985) +1 other reference
ⓘ Andrzej III quarry	[Heulandite-Ca] Janeczek (1985) +1 other reference

Portugal
Lisbon ⓘ Lisbon	[Heulandite-Ca] SEM-EDX by Marco E Ciriotti April 2012
ⓘ Loures	[Heulandite-Ca] Nunes (n.d.)
Lousa ⓘ Salemas quarry	[Heulandite-Ca] Nunes (n.d.)
ⓘ Odivelas	[Heulandite-Ca] Nunes (n.d.)
Ramada e Caneças ⓘ Ramada zeolite occurrence	[Heulandite-Ca] Pedro Alves analytical data. Specimens ...
Oeiras ⓘ Carnaxide e Queijas	[Heulandite-Ca] Nunes (n.d.)
ⓘ Mama Sul geodesic mark	[Heulandite-Ca] Alexandre Pedroso collection

Russia
Kamchatka Krai ⓘ Yagodninskoe zeolite deposit	[Heulandite-Ca] Pavel M. Kartashov analytical data (1984)
Khanty-Mansi Autonomous Okrug Berezovo district Saranpaul ⓘ Puiva Mount	[Heulandite-Ca] Burlakov (1999)
Krasnoyarsk Krai Evenkiysky District Nizhnyaya Tunguska River Basin ⓘ Amudikha River	[Heulandite-Ca] Krzysztof Andrzejewski ( https://www.mindat.org/mesg-613516.html ) +1 other reference
ⓘ Babkino quarry	[Heulandite-Ca] Levitsky (webmineral.ru)
ⓘ Dakat River	[Heulandite-Ca] collection V.V. Levitsky
ⓘ Krutoye	[Heulandite-Ca] in collection of Fersman Mineralogical ...
ⓘ Levoberezhnoe Iceland spar deposit	[Heulandite-Ca] Chukanov et al. (2003)
ⓘ Nidym River	[Heulandite-Ca] Kievlenko et al. (1987)
Tura ⓘ Tura quarry	[Heulandite-Ca] Kudryashova (1973) +1 other reference
Murmansk Oblast ⓘ Kukisvumchorr Mt	[Heulandite-Ca] Pekov et al. (2004)
Lovozersky District ⓘ Karnasurt Mountain	[Heulandite-Ca] Arzamastsev et al. (2008)
ⓘ Natrolite Stock	[Heulandite-Ca] Pekov (2000)
ⓘ Malyi Punkaruaiv Mountain	[Heulandite-Ca] Yakovenchuk et al. (2011)
Seidozero Lake ⓘ Lepkhe-Nel'm Mt	[Heulandite-Ca] Yakovenchuk et al. (2007)
Olenegorsk ⓘ Olenegorskoe Fe deposit	[Heulandite-Ca] Bazai et al. (2009)
Sverdlovsk Oblast Asbest ⓘ Bazhenovskoye deposit	[Heulandite-Ca] Антонов (2003)

Slovakia
Košice Region Trebišov District ⓘ Brezina	[Clinoptilolite-Ca] Myšľan P et al. (2022)
ⓘ Byšta	[Clinoptilolite-Ca] Myšľan P et al. (2022)
Kuzmice ⓘ Quartz veins	[Clinoptilolite-Ca] Myšľan P et al. (2022)
Prešov Region Poprad District Poprad ⓘ Kvetnica	[Heulandite-Ca] Martin Števko-unpublished
Vysoké Tatry ⓘ Prielom (Rohatka)	[Heulandite-Ca] Kreutz S. (1931)
Vranov nad Topľou District Nižný Hrabovec ⓘ Clinoptilolite mine	[Clinoptilolite-Ca] Tschegg et al. (2019)
Vechec ⓘ Vechec quarry	[Heulandite-Ca] Števko M. et al. (2019)

South Africa
KwaZulu-Natal eThekwini Metropolitan Municipality Durban Umhlatuzana valley ⓘ Clairwood quarries	[Heulandite-Ca] Heron +2 other references

Spain
Andalusia Almería Níjar Cabo de Gata volcanic complex ⓘ Los Escullos	[Clinoptilolite-Ca] Calvo (2018)
Málaga Canillas de Aceituno ⓘ La Rahije (El Molinillo)	[Heulandite-Ca] Calvo (2018)
Canary Islands Las Palmas Province ⓘ Gran Canaria	[Clinoptilolite-Ca] various added photos
La Aldea de San Nicolás ⓘ Barranco de Tocodoman	[Clinoptilolite-Ca] various added photos
Santa Cruz de Tenerife Province Tenerife ⓘ ~~Mount Pelada~~	[Clinoptilolite-Ca] Dill et al. (2023)
Community of Madrid La Cabrera ⓘ La Cabrera pluton	[Heulandite-Ca] Tánago et al. (2012)

Switzerland
Bern Interlaken-Oberhasli Guttannen ⓘ Bäregg	[Heulandite-Ca] Stalder et al. (1998)
Grisons Maloja Region Bregaglia Upper Val Bregaglia Promontogno ⓘ Gneiss quarry	[Heulandite-Ca] Stalder et al. (1998)
Soglio ⓘ Tumbler	[Heulandite-Ca] Stalder et al. (1998)
Val Forno ⓘ Monte del Forno	[Heulandite-Ca] Stalder et al. (1998)
Moesa Region Calanca Arvigo ⓘ Gneiss quarries	[Heulandite-Ca] Stalder et al. (1998) +2 other references
Surselva Region Trun ⓘ Barcuns	[Heulandite-Ca] Stalder et al. (1998)
Tujetsch Sedrun ⓘ Druntobel (Drun Tobel; Drun Sedrun; Krüzli valley; Kreuzli pass; Ruinas Plaunas)	[Heulandite-Ca] Jahn (2008)
ⓘ Val Giuv	[Heulandite-Ca] Stalder et al. (1998)
Val Milà ⓘ Piz Nair	[Heulandite-Ca] Stalder et al. (1998)
Val Strem ⓘ Caschlè	[Heulandite-Ca] Stalder et al. (1998)
Ticino Leventina Airolo ⓘ St Gotthard Highway tunnel (south section)	[Heulandite-Ca] Stalder et al. (1998)
Vallemaggia Cevio ⓘ Bavona Valley	[Heulandite-Ca] Stalder et al. (1998)
Uri Reuss Valley Felli Valley Schattig Wichel (Piz Giuv) ⓘ West slope	[Heulandite-Ca] Stalder et al. (1998)
Göschenen Göschenen Valley Göscheneralp ⓘ Dammastock	[Heulandite-Ca] Färber (n.d.)
Rien Valley ⓘ Schijenstock (Schyenstock; Schirstock)	[Heulandite-Ca] Stalder et al. (1998)
Silenen Maderanertal Etzli Valley ⓘ Chli Mutsch	[Heulandite-Ca] Stalder et al. (1998)
Valais Goms Binn Chriegalp valley ⓘ Kriegalp water tunnel	[Heulandite-Ca] Stalder et al. (1998)
Fiesch ⓘ Gibelbach	[Heulandite-Ca] American Mineralogist (1968) +1 other reference
Hérens Evolène Arolla Valley Arolla ⓘ Pièce Glacier	[Heulandite-Ca] Cuchet et al. (2008)
Sierre Anniviers Ayer ⓘ La Cor brook	[Heulandite-Ca] Ansermet (2012)
Zinal ⓘ Ar Pitetta (Arpitetta) Lake	[Heulandite-Ca] Ansermet (2012)
Westlich Raron Blatten Lang glacier area ⓘ Anun glacier	[Heulandite-Ca] Stalder et al. (1998)
ⓘ Lang glacier	[Heulandite-Ca] Stalder et al. (1998)
Kippel ⓘ Gattunalp (Gattun Alp)	[Heulandite-Ca] Stalder et al. (1998)

Tajikistan
Sughd Mastchoh District Altyn-Topkan ore field (Zarnisor ore field) ⓘ Altyn-Topkan deposit (Altyntopkan deposit; Altyn-Topkan Mine; Zarnisor deposit; Zarnisori Shimoli deposit; Northern Zarnisor deposit)	[Heulandite-Ca] Badalov et al. (1977)

Tanzania
Manyara Region Simanjiro District Lelatema Mountains ⓘ Merelani Hills	[Heulandite-Ca] Wilson et al. (2009)

UK
England Cornwall Carn Brea Pool ⓘ Cook's Kitchen Mine	[Clinoptilolite-Ca] De Bondt (n.d.)
ⓘ New Cook's Kitchen Mine	Paul Oldfield
St Just Botallack Botallack Mine ⓘ Wheal Hazard	[Clinoptilolite-Ca] J. Russell Socierty 2006
Northern Ireland County Down Mourne Mountains Newcastle ⓘ Lindsay's Leap	[Heulandite-Ca] Green et al. (2005)
Scotland ⓘ Strathclyde	[Heulandite-Ca] Brooke H J (1822)

Ukraine
Crimea Feodosia area ⓘ Karadag Reserve (Kara-Dag)	[Heulandite-Ca] Tischenko A. data
Simferopol area Lozovoye Village area ⓘ Lozovoye quarry	[Heulandite-Ca] Tischenko Alexander
Ukrainka Village area (Kurtsy) ⓘ Severnyi Kurtsovskii quarry (North Kyrtsy)	[Heulandite-Ca] Dvoichenko (1914) +1 other reference
Sevastopol Balaklava district ⓘ Cape Fiolent	[Heulandite-Ca] Dobrovolskaya T.I. (2004)
Volyn Oblast ⓘ Zhyrychi Cu deposit	[Heulandite-Ca] Emetz et al. (2005)

USA
Alaska Petersburg Borough ⓘ Kuiu Island	[Heulandite-Ca] Di Renzo et al. (1997)
Colorado Jefferson County Golden Mining District Golden ⓘ North Table Mountain	[Heulandite-Ca] Rocks & Minerals 79:4
ⓘ South Table Mountain	[Heulandite-Ca] Rocks & Minerals 79:4
Connecticut Fairfield County Brookfield ⓘ U. S. Route 7 Expressway (Danbury line to Iron Works District)	[Heulandite-Ca] former Ronald Januzzi collection.
Newtown Hawleyville ⓘ Sky Ridge railroad cut ?	[Heulandite-Ca] Januzzi et al. (1976)
ⓘ Interstate 84 road cuts (Route 6A bypass)	[Heulandite-Ca] Tschernich (1992) +1 other reference
Trumbull Long Hill ⓘ Old Mine Plaza construction site	[Heulandite-Ca] 'Heulandite' should be changed to ...
Hartford County Farmington ⓘ Farmington Trap Rock Quarry	[Heulandite-Ca] Moritz (n.d.)
Newington ⓘ Balf Quarry	[Heulandite-Ca] Moritz (n.d.)
Litchfield County Thomaston Thomaston Dam ⓘ Thomaston Dam railroad cut	[Heulandite-Ca] Moritz (n.d.)
Torrington ⓘ South Main Street construction site	[Heulandite-Ca] Field observations July 2020
Woodbury Orenaug Hills ⓘ O & G Southbury Quarry (Silliman Quarry; O & G No. 2 Quarry)	[Heulandite-Ca] Moritz (n.d.)
ⓘ O & G Woodbury Traprock Quarry (Orenaug Quarry; O & G No. 1 Quarry)	[Heulandite-Ca] Moritz (n.d.) +1 other reference
New Haven County ⓘ Oxford	[Heulandite-Ca] Moritz (n.d.)
ⓘ State Route 67 construction site	[Heulandite-Ca] Moritz (n.d.)
ⓘ Waterbury	[Heulandite-Ca] Walter D. Munson (of Southbury)
ⓘ Blue Stone Quarry	[Heulandite-Ca] Visually identified by Mike Polletta.
ⓘ Route 73 quarry	[Heulandite-Ca] Identified by Mike Polletta.
Hawaii Honolulu County Oahu Island Koolau Range (Koolau caldera) Kailua ⓘ Keolu Hills	[Heulandite-Ca] Fujishima et al. (1977)
ⓘ Lanikai Hills	[Heulandite-Ca] Dunham (1933)
Idaho Custer County Bay Horse Mining District ⓘ Challis	[Heulandite-Ca] Rocks & Minerals (March, 2001)
ⓘ Rat's Nest claim	[Heulandite-Ca] Ream (2004)
Maryland Baltimore City ⓘ Jones Falls Quarries	[Heulandite-Ca var: Beaumontite (of Lévy)] M. Levy (1839)
Massachusetts Hampshire County Amherst ⓘ Notch Quarry (Lane Quarry; Amherst Quarry; Round Mountain Quarry)	[Heulandite-Ca] Ted Johnson collection
Michigan Houghton County Portage Township ⓘ Isle Royal Mines	[Heulandite-Ca] Heinrich et al. (2004)
Nevada Pershing County Farrell Mining District ⓘ Unnamed Locality	[Clinoptilolite-Ca] Walstrom (n.d.)
New Hampshire Cheshire County Marlow ⓘ Turner Mine	[Heulandite-Ca] Czaja (2025)
New Jersey Passaic County Paterson ⓘ Upper New Street Quarry	[Heulandite-Ca] Lavinsky (n.d.)
Prospect Park ⓘ Prospect Park Quarry	[Heulandite-Ca] rruff.info (n.d.)
Sussex County Franklin ⓘ Balls Hill Iron Mines	[Heulandite-Ca] King (2022)
Ogdensburg Sterling Hill ⓘ Sterling Mine	[Heulandite-Ca] Lance Kearns
Union County Springfield Township Springfield ⓘ Houdaille Quarry (Summit Quarry; Commonwealth Quarry)	[Heulandite-Ca] Nikischer (2023)
New Mexico Grant County Alum Mountain Mining District (Alum Mining District) Gila Hot Springs ⓘ SA Canyon (Grapevine Campground)	[Heulandite-Ca] Patrick Haynes
Otero County Cornudas Mountains ⓘ Wind Mountain	[Clinoptilolite-Ca] Michael C Michayluk Collection
New York New York City Queens (Queens County) Woodside ⓘ Water Tunnel #3	[Heulandite-Ca] Jeff Weissman specimen
St. Lawrence County Fine ⓘ Scott farm pegmatites	[Heulandite-Ca] Marian Lupulescu (2010)
Pierrepont West Pierrepont ⓘ Selleck Road locality (Selleck Road tremolite locality)	[Heulandite-Ca] Chamberlain
Westchester County ⓘ Ossining (Sing Sing)	[Heulandite-Ca] New York State Museum mineral collection +1 other reference
ⓘ North Carolina	[Heulandite-Ca] Leonard S.Wiener and Sigrid Ballew
Catawba County Hickory ⓘ Martin Marietta Quarry (Hickory Quarry)	[Heulandite-Ca] Kenny Gay - North Carolina Geological ...
Guilford County Jamestown ⓘ Jamestown Quarry	[Heulandite-Ca] Kenny Gay - North Carolina Geological ...
Rowan County Woodleaf ⓘ Woodleaf Quarry	[Heulandite-Ca] Kenny Gay - North Carolina Geological ...
Oregon Clackamas County Clackamas River localities ⓘ Oak Grove Fork	[Heulandite-Ca] Micro Probe Volume IX Number 3 Spring ...
ⓘ Fishcreek Turn Quarry	[Clinoptilolite-Ca] RRUFF database specimen no. RO61098
Jackson County Lost Creek Reservoir ⓘ Crowfoot Road	[Heulandite-Ca] Phyllis Richardson
ⓘ Milepost 7	[Heulandite-Ca] Phyllis Richardson
Malheur County ⓘ Succor Creek	[Clinoptilolite-Ca] Altaner et al. (1990)
Tillamook County Netarts ⓘ Cape Lookout Quarry	[Clinoptilolite-Ca] Wise et al. (1978)
Pennsylvania Montgomery County Lower Merion Township ⓘ Flat Rock Tunnel	[Heulandite-Ca] Gordon (1922)
Rhode Island Providence County Lincoln Lime Rock ⓘ Conklin Quarry	[Heulandite-Ca] Michael W. Kieron collection
Washington County Westerly Bradford ⓘ Sullivan Quarry (Armetta Quarry; Copar Quarry; Westerly Granite Co. Quarry)	[Heulandite-Ca] Michael W. Kieron collection
Virginia Amelia County Winterham ⓘ Morefield Mine (Morefield pegmatite)	[Clinoptilolite-Ca] Kearns et al. (2016)
Fairfax County ⓘ Manassas Quarry	[Heulandite-Ca] ID'd by Tony Kampf
Prince William County Manassas ⓘ Vulcan Materials Company Crushed Stone Quarry (Manassas Quarry)	[Heulandite-Ca] ID'd by Tony Kampf. I had listed them ...
Washington Douglas County ⓘ Rock Island Dam	[Clinoptilolite-Ca] Tschernich et al. (1982) +1 other reference
Skamania County Cook ⓘ Carpathite occurrence	[Heulandite-Ca] Gladwell (2022)
Wahkiakum County Altoona ⓘ Altoona-Pillar Rock Road roadcuts	[Clinoptilolite-Ca] Micro Probe Volume IX Number 3 Spring ... +1 other reference
ⓘ Unnamed Basalt quarry (Columbia River dikes)	[Clinoptilolite-Ca] - (n.d.)

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