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Siderophyllite

A valid IMA mineral species - grandfathered

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Siderophyllite

Assunção Mine, Aldeia Nova, Ferreira de Aves, Sátão, Viseu, Portugal

Siderophyllite

Assunção Mine, Aldeia Nova, Ferreira de Aves, Sátão, Viseu, Portugal

Siderophyllite

Seula mine, Mount Camoscio, Oltrefiume, Baveno, Verbano-Cusio-Ossola Province, Piedmont, Italy

Siderophyllite

Assunção Mine, Aldeia Nova, Ferreira de Aves, Sátão, Viseu, Portugal

Siderophyllite

Assunção Mine, Aldeia Nova, Ferreira de Aves, Sátão, Viseu, Portugal

Siderophyllite

Seula mine, Mount Camoscio, Oltrefiume, Baveno, Verbano-Cusio-Ossola Province, Piedmont, Italy

Siderophyllite

Assunção Mine, Aldeia Nova, Ferreira de Aves, Sátão, Viseu, Portugal

Siderophyllite

Assunção Mine, Aldeia Nova, Ferreira de Aves, Sátão, Viseu, Portugal

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About SiderophylliteHide

Formula:

KFe²⁺₂Al(Al₂Si₂O₁₀)(OH)₂

Colour:

Dark green, brown, black

Hardness:

2½ - 3

Specific Gravity:

3.1

Crystal System:

Monoclinic

Member of:

Biotite Group > Trioctahedral mica Group > Mica Group

Name:

From Greek "σίδηρος" (sideros), for iron, plus "φύλλον" (phyllos), for leaf, alluding to its composition and perfect basal cleavage.

Type Locality:

ⓘ Pikes Peak, El Paso County, Colorado, USA

Mica Group.
Forms a series with eastonite.
Chemically similar to (the Fe-richer) annite.

Unique IdentifiersHide

Mindat ID:

3651

Long-form identifier:

mindat:1:1:3651:7

IMA Classification of SiderophylliteHide

IMA status:

Approved, 'Grandfathered' (first described prior to 1959)

IMA Formula:

KFe²⁺₂Al(Si₂Al₂)O₁₀(OH)₂

First published:

1881

Type description reference:

Lewis, H.C. (1881) On siderophyllite - a new mineral. Proceedings of the Academy of Natural Sciences of Philadelphia: 32: 254-255.

Classification of SiderophylliteHide

Strunz-mindat (2026):

9.EC.20

9 : SILICATES (Germanates)
E : Phyllosilicates
C : Phyllosilicates with mica sheets, composed of tetrahedral and octahedral nets

Dana 8th ed.:

71.2.2b.5

71 : PHYLLOSILICATES Sheets of Six-Membered Rings
2 : Sheets of 6-membered rings with 2:1 layers

Hey's CIM Ref.:

16.18.5

16 : Silicates Containing Aluminum and other Metals
18 : Aluminosilicates of Fe and alkalis

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.

Symbol	Source	Reference for Standard
Sid	IMA–CNMNC	Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
Sid	The Canadian Mineralogist (2019)	The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download
Sid	Warr (2020)	Warr, L.N. (2020) Recommended abbreviations for the names of clay minerals and associated phases. Clay Minerals, 55, 261–264 doi:10.1180/clm.2020.30

Physical Properties of SiderophylliteHide

Transparency:

Translucent

Colour:

Dark green, brown, black

Hardness:

2½ - 3 on Mohs scale

Cleavage:

Perfect
{001}

Density:

3.1 g/cm³ (Measured) 3.17 g/cm³ (Calculated)

Optical Data of SiderophylliteHide

Type:

Biaxial (-)

RI values:

n_α = 1.582 n_β = 1.625 n_γ = 1.625

2V:

Measured: 4°

Max. Birefringence:

δ = 0.043
Based on recorded range of RI values above.

Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.

Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.

Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.

Thickness: 30 µm Order divisions

Rotation:

Surface Relief:

High (positive)
Relative to Canada balsam mounting medium (n ≈ 1.537).

This shows the grain boundary and Becke line effect under plane-polarised light, based on the contrast between this mineral's average refractive index and the mounting medium. It does not take into account mineral colouration.

Focus:

In focus

Interference Figure:

This shows the idealized biaxial acute bisectrix (Bxa) interference figure - the conoscopic view for a grain cut perpendicular to the acute bisectrix, using this mineral's 2V. The two small white dots mark the melatopes - the points where the two optic axes emerge - and are shown only when they fall within the field of view. The coloured bands are isochromatics, and the dark bands are isogyres.

Rotate the stage: at 0°/90° the isogyres form a cross through the melatopes; at 45° they pull apart into curved hyperbolas. That splitting on rotation - absent in a uniaxial figure - is the standard diagnostic test for telling biaxial minerals from uniaxial ones. If 2V is large, the melatopes may fall outside the field of view, as they often do at the microscope too.

Thickness: 30 µm

Stage rotation: 0°

Dispersion:

r < v moderate

Pleochroism:

Weak

Comments:

X = brown; Y = Z = dark brown

Chemistry of SiderophylliteHide

Mindat Formula:

KFe²⁺₂Al(Al₂Si₂O₁₀)(OH)₂

Element Weights:

Element	% weight
O	39.840 %
Fe	23.176 %
Al	16.797 %
Si	11.656 %
K	8.113 %
H	0.418 %

Calculated from ideal end-member formula.

Elements listed:

Al, Fe, H, K, O, Si - search for minerals with similar chemistry

Common Impurities:

Ti,Mn,Mg,Ca,Li,Na,Rb,Cs,Cl,H₂O

Crystallography of SiderophylliteHide

Crystal System:

Monoclinic

Cell Parameters:

a = 5.348(2) Å, b = 9.261(3) Å, c = 10.263(4) Å
β = 100.19(7)°

Ratio:

a:b:c = 0.577 : 1 : 1.108

Unit Cell V:

500.29 Å³ (Calculated from Unit Cell)

Comment:

Point Group: n.d.; Space Group: n.d.;1M polytype.

Crystal StructureHide

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Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4

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CIF File Best | x | y | z | a | b | c

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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	Temp (K)
0006977	Siderophyllite	Brigatti M F, Kile D E, Poppi L (2003) Crystal structure and chemistry of lithium-bearing trioctahedral micas-3T European Journal of Mineralogy 15 349-355	2003	293
0006976	Siderophyllite	Brigatti M F, Kile D E, Poppi L (2003) Crystal structure and chemistry of lithium-bearing trioctahedral micas-3T European Journal of Mineralogy 15 349-355	2003	293
0006975	Siderophyllite	Brigatti M F, Kile D E, Poppi L (2003) Crystal structure and chemistry of lithium-bearing trioctahedral micas-3T European Journal of Mineralogy 15 349-355	2003	293
0002931	Siderophyllite	Redhammer G J, Roth G (2002) Single-crystal structure refinements and crystal chemistry of synthetic trioctahedral micas KM3(Al,Si)4O10(OH)2, where M = Ni, Mg, Co, Fe, Al American Mineralogist 87 1464-1476	2002	293
0002927	Siderophyllite	Redhammer G J, Roth G (2002) Single-crystal structure refinements and crystal chemistry of synthetic trioctahedral micas KM3(Al,Si)4O10(OH)2, where M = Ni, Mg, Co, Fe, Al American Mineralogist 87 1464-1476	2002	293
0002509	Siderophyllite	Brigatti M F, Lugli C, Poppi L, Foord E E, Kile D E (2000) Crystal chemical variations in Li- and Fe-rich micas from Pikes Peak batholith (central Colorado) American Mineralogist 85 1275-1286	2000	293
0002508	Siderophyllite	Brigatti M F, Lugli C, Poppi L, Foord E E, Kile D E (2000) Crystal chemical variations in Li- and Fe-rich micas from Pikes Peak batholith (central Colorado) American Mineralogist 85 1275-1286	2000	293
0002507	Siderophyllite	Brigatti M F, Lugli C, Poppi L, Foord E E, Kile D E (2000) Crystal chemical variations in Li- and Fe-rich micas from Pikes Peak batholith (central Colorado) American Mineralogist 85 1275-1286	2000	293
0002506	Siderophyllite	Brigatti M F, Lugli C, Poppi L, Foord E E, Kile D E (2000) Crystal chemical variations in Li- and Fe-rich micas from Pikes Peak batholith (central Colorado) sample: 140(2) American Mineralogist 85 1275-1286	2000	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Siderophyllite'
loop_
_publ_author_name
'Brigatti M F'
'Kile D E'
'Poppi L'
_journal_name_full 'European Journal of Mineralogy'
_journal_volume 15 
_journal_year 2003
_journal_page_first 349
_journal_page_last 355
_publ_section_title
;
 Crystal structure and chemistry of lithium-bearing trioctahedral micas-3T
 Sample: 103
;
_database_code_amcsd 0006977
_chemical_formula_sum 'Si3.22 Al1.68 Ti.03 Fe1.26 Mg.02 Mn.05 Li.62 K.98 Na.04 O10.71 F1.29 H.15'
_cell_length_a 5.316
_cell_length_b 5.316
_cell_length_c 29.846
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 730.444
_exptl_crystal_density_diffrn      3.071
_symmetry_space_group_name_H-M 'P 31 1 2'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '-x+y,y,1/3-z'
  '-y,x-y,1/3+z'
  '-y,-x,2/3-z'
  '-x+y,-x,2/3+z'
  'x,x-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_U_iso_or_equiv
SiT1   0.21670   0.78470   0.90845   0.80500   0.00849
AlT1   0.21670   0.78470   0.90845   0.19500   0.00849
SiT2   0.54460   0.44860   0.90954   0.80500   0.00811
AlT2   0.54460   0.44860   0.90954   0.19500   0.00811
TiM1   0.88800   0.44400   0.00000   0.01000   0.01343
AlM1   0.88800   0.44400   0.00000   0.30000   0.01343
FeM1   0.88800   0.44400   0.00000   0.42000   0.01343
MgM1   0.88800   0.44400   0.00000   0.00670   0.01343
MnM1   0.88800   0.44400   0.00000   0.01670   0.01343
LiM1   0.88800   0.44400   0.00000   0.20670   0.01343
TiM2   0.22690   0.11340   0.00000   0.01000   0.01267
AlM2   0.22690   0.11340   0.00000   0.30000   0.01267
FeM2   0.22690   0.11340   0.00000   0.42000   0.01267
MgM2   0.22690   0.11340   0.00000   0.00670   0.01267
MnM2   0.22690   0.11340   0.00000   0.01670   0.01267
LiM2   0.22690   0.11340   0.00000   0.20670   0.01267
TiM3   0.55220   0.77610   0.00000   0.01000   0.00887
AlM3   0.55220   0.77610   0.00000   0.30000   0.00887
FeM3   0.55220   0.77610   0.00000   0.42000   0.00887
MgM3   0.55220   0.77610   0.00000   0.00670   0.00887
MnM3   0.55220   0.77610   0.00000   0.01670   0.00887
LiM3   0.55220   0.77610   0.00000   0.20670   0.00887
K   0.88250   0.11750   0.83333   0.98000   0.03040
Na   0.88250   0.11750   0.83333   0.04000   0.03040
O1   0.22700   0.79200   0.96370   1.00000   0.01646
O2   0.53780   0.43840   0.96460   1.00000   0.02153
O3   0.36380   0.10900   0.88778   1.00000   0.02153
O4   0.89200   0.60360   0.89028   1.00000   0.01900
O5   0.39460   0.63790   0.88980   1.00000   0.01646
O6   0.92200   0.11000   0.96585   0.28000   0.03040
O-H   0.92200   0.11000   0.96585   0.07500   0.03040
F   0.92200   0.11000   0.96585   0.64500   0.03040
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
SiT1 0.00773 0.00760 0.01077 0.00456 0.00038 0.00000
AlT1 0.00773 0.00760 0.01077 0.00456 0.00038 0.00000
SiT2 0.00925 0.01115 0.00646 0.00709 0.00139 -0.00317
AlT2 0.00925 0.01115 0.00646 0.00709 0.00139 -0.00317
TiM1 0.01609 0.01609 0.01279 0.01140 0.00000 0.00000
AlM1 0.01609 0.01609 0.01279 0.01140 0.00000 0.00000
FeM1 0.01609 0.01609 0.01279 0.01140 0.00000 0.00000
MgM1 0.01609 0.01609 0.01279 0.01140 0.00000 0.00000
MnM1 0.01609 0.01609 0.01279 0.01140 0.00000 0.00000
LiM1 0.01609 0.01609 0.01279 0.01140 0.00000 0.00000
TiM2 0.01647 0.01647 0.01153 0.01266 0.00000 0.00000
AlM2 0.01647 0.01647 0.01153 0.01266 0.00000 0.00000
FeM2 0.01647 0.01647 0.01153 0.01266 0.00000 0.00000
MgM2 0.01647 0.01647 0.01153 0.01266 0.00000 0.00000
MnM2 0.01647 0.01647 0.01153 0.01266 0.00000 0.00000
LiM2 0.01647 0.01647 0.01153 0.01266 0.00000 0.00000
TiM3 0.01393 0.01393 0.00899 0.01393 -0.00760 -0.00760
AlM3 0.01393 0.01393 0.00899 0.01393 -0.00760 -0.00760
FeM3 0.01393 0.01393 0.00899 0.01393 -0.00760 -0.00760
MgM3 0.01393 0.01393 0.00899 0.01393 -0.00760 -0.00760
MnM3 0.01393 0.01393 0.00899 0.01393 -0.00760 -0.00760
LiM3 0.01393 0.01393 0.00899 0.01393 -0.00760 -0.00760
K 0.03052 0.03052 0.03179 0.01659 -0.00025 -0.00025
Na 0.03052 0.03052 0.03179 0.01659 -0.00025 -0.00025
O1 0.01140 0.02153 0.00380 -0.00253 0.00507 -0.00253
O2 0.01773 0.03040 0.01647 0.01266 0.00127 -0.00253
O3 0.03293 0.01140 0.01520 0.00760 -0.00127 -0.00507
O4 0.01140 0.02406 0.01520 0.00380 0.00253 -0.00127
O5 0.02153 0.01900 0.01393 0.01393 -0.00127 0.00253
O6 0.05699 0.03040 0.02153 0.03546 -0.00633 -0.01140
O-H 0.05699 0.03040 0.02153 0.03546 -0.00633 -0.01140
F 0.05699 0.03040 0.02153 0.03546 -0.00633 -0.01140

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
9.99 Å	(10b)
2.62 Å	(10)
3.36 Å	(9)
3.27 Å	(9)
1.542 Å	(9)
2.432 Å	(8)
1.666 Å	(8b)

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
Stage 3a: Earth’s earliest Hadean crust	>4.50
8 : Mafic igneous rocks
9 : Lava/xenolith minerals (hornfels, sanidinite facies)
Stage 4a: Earth’s earliest continental crust	>4.4-3.0
19 : Granitic intrusive rocks
20 : Acidic volcanic rocks
High-? alteration and/or metamorphism
31 : Thermally altered carbonate, phosphate, and iron formations
Stage 4b: Highly evolved igneous rocks	>3.0
34 : Complex granite pegmatites
35 : Ultra-alkali and agpaitic igneous rocks
Stage 5: Initiation of plate tectonics	<3.5-2.5
40 : Regional metamorphism (greenschist, amphibolite, granulite facies)

Type Occurrence of SiderophylliteHide

Type Locality:

ⓘ Pikes Peak, El Paso County, Colorado, USA

Associated Minerals at Type Locality:

Astrophyllite

Microcline

Reference:

Lewis, H.C. (1881) On siderophyllite - a new mineral. Proceedings of the Academy of Natural Sciences of Philadelphia: 32: 254-255.

Synonyms of SiderophylliteHide

Hydroxyl-siderophyllite

Other Language Names for SiderophylliteHide

Dutch:Siderophylliet

German:Siderophyllit

Russian:Сидерофиллит

Simplified Chinese:铁叶云母

Spanish:Siderofilita

Varieties of SiderophylliteHide

Magnesium-bearing Siderophyllite

Relationship of Siderophyllite to other SpeciesHide

Member of:

Biotite Group > Trioctahedral mica Group > Mica Group

Other Members of Biotite:

Annite	KFe²⁺₃(AlSi₃O₁₀)(OH)₂	Mon. 2/m : B2/m
Eastonite	KMg₂Al(Al₂Si₂O₁₀)(OH)₂	Mon.
Fluorannite	KFe²⁺₃(Si₃Al)O₁₀F₂	Mon. 2/m : B2/m
Fluorophlogopite	KMg₃(Si₃Al)O₁₀F₂	Mon. 2/m : B2/m
Fluorotetraferriphlogopite	KMg₃(Fe³⁺Si₃O₁₀)F₂	Mon. 2/m : B2/m
Oxyphlogopite	K(Mg,Ti,Fe)₃[(Si,Al)₄O₁₀](O,F)₂	Mon. 2/m : B2/m
Phlogopite	KMg₃(AlSi₃O₁₀)(OH)₂	Mon. 2/m : B2/m
Tetraferriannite	KFe²⁺₃(Si₃Fe³⁺)O₁₀(OH)₂	Mon. 2/m : B2/m
Tetraferriphlogopite	KMg₃(Si₃Fe³⁺)O₁₀(OH)₂	Mon. 2/m : B2/m

Forms a series with:

Polylithionite	Zinnwaldite
Polylithionite	Siderophyllite-Polylithionite Series

Common AssociatesHide

Associations Based on Photo Data:

8 photos of Siderophyllite associated with Quartz	SiO₂
4 photos of Siderophyllite associated with Fluorite	CaF₂
3 photos of Siderophyllite associated with Topaz	Al₂(SiO₄)(F,OH)₂
3 photos of Siderophyllite associated with Phenakite	Be₂SiO₄
1 photo of Siderophyllite associated with Anatase	TiO₂
1 photo of Siderophyllite associated with Aeschynite-(Y)	Y(TiNb)O₆
1 photo of Siderophyllite associated with Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
1 photo of Siderophyllite associated with Spessartine	Mn²⁺₃Al₂(SiO₄)₃
1 photo of Siderophyllite associated with Ferro-gedrite	◻Fe²⁺₂(Fe²⁺₃Al₂)(Al₂Si₆O₂₂)(OH)₂

Related Minerals - Strunz-mindat Grouping Hide

9.EC.	Meifuite	KFe₆(Si₇Al)O₁₉(OH)₄Cl₂	Tric. 1 : P1
9.EC.	Balestraite	KLi₂V⁵⁺Si₄O₁₂	Mon. 2 : B2
9.EC.	Voloshinite	Rb(LiAl_1.5◻_0.5)(Al_0.5Si_3.5)O₁₀F₂	Mon. 2/m : B2/b
9.EC.05	Talc	Mg₃Si₄O₁₀(OH)₂	Tric. 1 : P1
9.EC.05	Minnesotaite	Fe²⁺₃Si₄O₁₀(OH)₂	Tric. 1 : P1
9.EC.05	Willemseite	Ni₃Si₄O₁₀(OH)₂	Mon.
9.EC.10	Fluorluanshiweiite	KLiAl_1.5(Si_3.5Al_0.5)O₁₀F₂	Mon. 2/m : B2/m
9.EC.10	Garmite	CsLiMg₂(Si₄O₁₀)F₂	Mon.
9.EC.10	Gorbunovite	CsLi₂(Ti,Fe)Si₄O₁₀(F,OH,O)₂	Mon.
9.EC.10	Ferripyrophyllite	Fe³⁺Si₂O₅(OH)	Mon. 2/m
9.EC.10	Manganiceladonite	K(MgMn³⁺◻)(Si₄O₁₀)(OH)₂	Mon.
9.EC.10	Luanshiweiite	KLiAl_1.5(Si_3.5Al_0.5)O₁₀(OH)₂	Mon. 2/m : B2/b
9.EC.10	Pyrophyllite	Al₂Si₄O₁₀(OH)₂	Tric. 1
9.EC.15	Paragonite	NaAl₂(AlSi₃O₁₀)(OH)₂	Mon.
9.EC.15	Ferroaluminoceladonite	K(Fe²⁺Al◻)(Si₄O₁₀)(OH)₂	Mon. 2/m : B2/m
9.EC.15	Nanpingite	CsAl₂(AlSi₃O₁₀)(OH,F)₂	Mon. 2/m : B2/b
9.EC.15	Ferroceladonite	K(Fe²⁺Fe³⁺◻)(Si₄O₁₀)(OH)₂	Mon. 2/m : B2/m
9.EC.15	Ganterite	Ba_0.5(Na,K)_0.5Al₂(Si_2.5Al_1.5)O₁₀(OH)₂	Mon. 2/m : B2/b
9.EC.15	Kreiterite	CsLi₂Fe³⁺(Si₄O₁₀)F₂	Mon.
9.EC.15	Roscoelite	KV³⁺₂(AlSi₃O₁₀)(OH)₂	Mon. 2/m : B2/b
9.EC.15	Aluminoceladonite	K(MgAl◻)(Si₄O₁₀)(OH)₂	Mon. 2/m : B2/m
9.EC.15	Tobelite	(NH₄)Al₂(AlSi₃O₁₀)(OH)₂	Mon. 2/m : B2/m
9.EC.15	Tainiolite	KLiMg₂(Si₄O₁₀)F₂	Mon. 2/m : B2/m
9.EC.15	Celadonite	K(MgFe³⁺◻)(Si₄O₁₀)(OH)₂	Mon. 2/m : B2/m
9.EC.15	Chromceladonite	K(MgCr◻)(Si₄O₁₀)(OH)₂	Mon. 2 : B2
9.EC.15	Montdorite	KFe²⁺_1.5Mn²⁺_0.5Mg_0.5Si₄O₁₀(F,OH)₂	Mon. 2/m : B2/m
9.EC.15	Chromphyllite	KCr₂(AlSi₃O₁₀)(OH)₂	Mon. 2/m : B2/b
9.EC.15	Boromuscovite	KAl₂(BSi₃O₁₀)(OH)₂	Mon. 2/m
9.EC.15	'UM1988-22-SiO:AlCaFFeHKLiMg'	KLiMgAl₂Si₃O₁₀F₂	Mon.
9.EC.15	Chernykhite	(Ba,Na)(V³⁺,Al,Mg)₂((Si,Al)₄O₁₀)(OH)₂	Mon.
9.EC.15	Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂	Mon. 2/m : B2/b
9.EC.20	Masutomilite	K(LiAlMn²⁺)[AlSi₃O₁₀]F₂	Mon. 2 : B2
9.EC.20	Oxyphlogopite	K(Mg,Ti,Fe)₃[(Si,Al)₄O₁₀](O,F)₂	Mon. 2/m : B2/m
9.EC.20	'Chloroferrokinoshitalite'	(Ba,K)(Fe²⁺,Mg)₃(Al₂Si₂O₁₀)(Cl,OH,F)₂
9.EC.20	Sokolovaite	CsLi₂Al(Si₄O₁₀)F₂	Mon.
9.EC.20	Hendricksite	KZn₃(Si₃Al)O₁₀(OH)₂	Mon. 2/m : B2/m
9.EC.20	Tetraferriphlogopite	KMg₃(Si₃Fe³⁺)O₁₀(OH)₂	Mon. 2/m : B2/m
9.EC.20	Fluorannite	KFe²⁺₃(Si₃Al)O₁₀F₂	Mon. 2/m : B2/m
9.EC.20	Aspidolite	NaMg₃(AlSi₃O₁₀)(OH)₂	Mon. 2/m : B2/m
9.EC.20	Suhailite	(NH₄)Fe²⁺₃(AlSi₃O₁₀)(OH)₂	Mon. 2/m : B2/m
9.EC.20	Ephesite	NaLiAl₂(Al₂Si₂O₁₀)(OH)₂	Tric. 1 : P1
9.EC.20	Norrishite	KLiMn³⁺₂(Si₄O₁₀)O₂	Mon. 2/m : B2/m
9.EC.20	Phlogopite	KMg₃(AlSi₃O₁₀)(OH)₂	Mon. 2/m : B2/m
9.EC.20	Yangzhumingite	KMg_2.5(Si₄O₁₀)F₂	Mon. 2/m : B2/m
9.EC.20	Orlovite	KLi₂Ti(Si₄O₁₀)OF	Mon. 2 : B2
9.EC.20	Tetraferriannite	KFe²⁺₃(Si₃Fe³⁺)O₁₀(OH)₂	Mon. 2/m : B2/m
9.EC.20	Shirokshinite	K(NaMg₂)(Si₄O₁₀)F₂	Mon. 2/m : B2/m
9.EC.20	Trilithionite	K(Li_1.5Al_1.5)(AlSi₃O₁₀)(F,OH)₂	Mon. 2/m : B2/b
9.EC.20	Polylithionite	KLi₂Al(Si₄O₁₀)(F,OH)₂	Mon. 2/m : B2/b
9.EC.20	Shirozulite	KMn²⁺₃(Si₃Al)O₁₀(OH)₂	Mon. 2/m : B2/m
9.EC.20	Preiswerkite	NaMg₂Al(Al₂Si₂O₁₀)(OH)₂	Mon. 2/m : B2/b
9.EC.20	Fluorophlogopite	KMg₃(Si₃Al)O₁₀F₂	Mon. 2/m : B2/m
9.EC.20	Wonesite	(Na,K,◻)(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH,F)₄	Mon. 2/m : B2/m
9.EC.20	'UM2004-49-SiO:AlCsFHKLi'	(Cs,K)(Al,Li)_2.6((Si,Al)₄O₁₀)(F,OH)₂
9.EC.20	Fluorotetraferriphlogopite	KMg₃(Fe³⁺Si₃O₁₀)F₂	Mon. 2/m : B2/m
9.EC.20	Annite	KFe²⁺₃(AlSi₃O₁₀)(OH)₂	Mon. 2/m : B2/m
9.EC.20	Eastonite	KMg₂Al(Al₂Si₂O₁₀)(OH)₂	Mon.
9.EC.22	'Pimelite'	Ni₃Si₄O₁₀(OH)₂ · 4H₂O	Hex.
9.EC.30	Margarite	CaAl₂(Al₂Si₂O₁₀)(OH)₂	Mon. 2/m : B2/b
9.EC.35	Kinoshitalite	(Ba,K)(Mg,Mn²⁺,Al)₃(Al₂Si₂O₁₀)(OH)₂	Mon. 2/m : B2/m
9.EC.35	Ferrokinoshitalite	(Ba,K)(Fe²⁺,Mg)₃(Al₂Si₂O₁₀)(OH,F)₂	Mon. 2/m : B2/m
9.EC.35	Clintonite	CaAlMg₂(SiAl₃O₁₀)(OH)₂	Mon. 2/m : B2/m
9.EC.35	Oxykinoshitalite	(Ba,K)(Mg,Ti,Fe³⁺,Fe²⁺)₃((Si,Al)₄O₁₀)(O,OH,F)₂	Mon. 2/m : B2/m
9.EC.35	Fluorokinoshitalite	BaMg₃(Al₂Si₂O₁₀)F₂	Mon. 2/m : B2/m
9.EC.35	Bityite	CaLiAl₂(AlBeSi₂O₁₀)(OH)₂	Mon. 2/m : B2/b
9.EC.35	Anandite	(Ba,K)(Fe²⁺,Mg)₃((Si,Al,Fe)₄O₁₀)(S,OH)₂	Mon. 2/m : B2/b
9.EC.40	Montmorillonite	(Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O	Mon. 2/m : B2/m
9.EC.40	Beidellite	(Na,Ca_0.5)_0.3Al₂((Si,Al)₄O₁₀)(OH)₂ · nH₂O	Mon. 2/m : B2/m
9.EC.40	Volkonskoite	Ca_0.3(Cr,Mg,Fe)₂((Si,Al)₄O₁₀)(OH)₂ · 4H₂O	Mon.
9.EC.40	Nontronite	Na_0.3Fe₂((Si,Al)₄O₁₀)(OH)₂ · nH₂O	Mon. 2/m : B2/m
9.EC.40	Kurumsakite	(Zn,Ni,Cu)₈Al₈V⁵⁺₂Si₅O₃₅ · 27H₂O (?)	Orth.
9.EC.40	Yakhontovite	(Ca,Na)_0.5(Cu,Fe,Mg)₂(Si₄O₁₀)(OH)₂ · 3H₂O	Mon.
9.EC.45	Swinefordite	Li(Al,Li,Mg)₃((Si,Al)₄O₁₀)₂(OH,F)₄ · nH₂O	Mon. 2/m : B2/m
9.EC.45	Hectorite	Na_0.3(Mg,Li)₃(Si₄O₁₀)(F,OH)₂	Mon. 2/m : B2/m
9.EC.45	Zincsilite	Zn₃Si₄O₁₀(OH)₂ · 4H₂O (?)	Mon.
9.EC.45	Hanjiangite	Ba₂CaV³⁺Al(H₂AlSi₃O₁₂)(CO₃)₂F	Mon. 2 : B2
9.EC.45	Spadaite	MgSiO₂(OH)₂ · H₂O (?)
9.EC.45	Ferrosaponite	Ca_0.3(Fe²⁺,Mg,Fe³⁺)₃((Si,Al)₄O₁₀)(OH)₂ · 4H₂O	Mon.
9.EC.45	Stevensite	(Ca,Na)_xMg_3-x(Si₄O₁₀)(OH)₂	Mon.
9.EC.45	Saponite	Ca_0.25(Mg,Fe)₃((Si,Al)₄O₁₀)(OH)₂ · nH₂O	Mon.
9.EC.45	Sauconite	Na_0.3Zn₃((Si,Al)₄O₁₀)(OH)₂ · 4H₂O	Mon.
9.EC.50	Vermiculite	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄ · 8H₂O	Mon. 2/m
9.EC.52	'Tarasovite'	near NaKAl₁₁Si₁₃O₄₀(OH)₉ · 3H₂O
9.EC.55	Clinochlore	Mg₅Al(AlSi₃O₁₀)(OH)₈	Mon. 2/m : B2/m
9.EC.55	Borocookeite	(LiAl₄◻)[BSi₃O₁₀](OH)₈	Mon. m : Bb
9.EC.55	Franklinfurnaceite	Ca₂Fe³⁺Mn²⁺₃Mn³⁺(Zn₂Si₂O₁₀)(OH)₈	Mon. 2 : B2
9.EC.55	Pennantite	Mn²⁺₅Al(AlSi₃O₁₀)(OH)₈	Tric.
9.EC.55	Vakhrushevaite	Mg₅Cr(AlSi₃O₁₀)(OH)₈	Tric. 1
9.EC.55	Nimite	Ni₅Al(AlSi₃O₁₀)(OH)₈	Mon. 2/m : B2/m
9.EC.55	Cookeite	(LiAl₄◻)[AlSi₃O₁₀](OH)₈	Mon. 2/m
9.EC.55	Gonyerite	Mn²⁺₅Fe³⁺(Fe³⁺Si₃O₁₀)(OH)₈	Orth.
9.EC.55	Chamosite	Fe²⁺₅Al(AlSi₃O₁₀)(OH)₈	Mon. 2/m : B2/m
9.EC.55	'Orthochamosite'	(Fe²⁺,Mg,Fe³⁺)₅Al(AlSi₃O₁₀)(OH,O)₈
9.EC.55	Baileychlore	Zn₅Al(AlSi₃O₁₀)(OH)₈	Tric. 1
9.EC.55	Sudoite	Mg₂Al₃(AlSi₃O₁₀)(OH)₈	Mon. 2/m : B2/m
9.EC.55	Glagolevite	Na(Mg,Al)₆(AlSi₃O₁₀)(OH,O)₈	Tric. 1 : P1
9.EC.55	Donbassite	Al_4.33(AlSi₃O₁₀)(OH)₈	Mon. 2 : B2
9.EC.60	Dozyite	Mg₇Al₂(Al₂Si₄O₁₅)(OH)₁₂	Mon.
9.EC.60	Rectorite	(Na,Ca)Al₄((Si,Al)₈O₂₀)(OH)₄ · 2H₂O	Mon.
9.EC.60	Corrensite	(Mg,Fe)₉((Si,Al)₈O₂₀)(OH)₁₀ · nH₂O	Orth.
9.EC.60	Aliettite	Ca_0.2Mg₆((Si,Al)₈O₂₀)(OH)₄ · 4H₂O	Mon.
9.EC.60	Karpinskite	(Ni,Mg)₂Si₂O₅(OH)₂ (?)	Mon.
9.EC.60	Lunijianlaite	Li_0.7Al_6.2(AlSi₇O₂₀)(OH,O)₁₀	Mon.
9.EC.60	Tosudite	Na_0.5(Al,Mg)₆((Si,Al)₈O₁₈)(OH)₁₂ · 5H₂O	Mon. 2 : B2
9.EC.60	Hydrobiotite	K(Mg,Fe²⁺)₆((Si,Al)₈O₂₀)(OH)₄ · nH₂O	Mon. 2/m : B2/m
9.EC.60	Saliotite	(Li,Na)Al₃(AlSi₃O₁₀)(OH)₅	Mon. 2/m : B2/m
9.EC.60	Kulkeite	Mg₈Al(AlSi₇O₂₀)(OH)₁₀	Mon.
9.EC.60	Brinrobertsite	Na_0.3Al₄(Si₄O₁₀)₂(OH)₄ · 3.5 H₂O	Mon.
9.EC.65	Macaulayite	(Fe,Al)₂₄Si₄O₄₃(OH)₂	Mon.
9.EC.70	Burckhardtite	Pb₂(Fe³⁺Te⁶⁺)[AlSi₃O₈]O₆	Trig. 3m(32/m) : P31m
9.EC.75	Niksergievite	(Ba,Ca)₂Al₃(AlSi₃O₁₀)(CO₃)(OH)₆ · nH₂O	Mon.
9.EC.75	Ferrisurite	(Pb,Ca)_2.4Fe³⁺₂(Si₄O₁₀)(CO₃)_1.7(OH)₃ · nH₂O	Mon.
9.EC.75	Surite	(Pb,Ca)₃(Al,Fe²⁺,Mg)₂((Si,Al)₄O₁₀)(CO₃)₂(OH)₂	Mon. 2 : P2₁
9.EC.80	Kegelite	Pb₈Al₄(Si₈O₂₀)(SO₄)₂(CO₃)₄(OH)₈	Mon.

RadioactivityHide

Radioactivity:

Element	% Content	Activity (Bq/kg)	Radiation Type
Uranium (U)	0.0000%	0	α, β, γ
Thorium (Th)	0.0000%	0	α, β, γ
Potassium (K)	8.1132%	2,515	β, γ

For comparison:

Banana: ~15 Bq per fruit
Granite: 1,000–3,000 Bq/kg
EU exemption limit: 10,000 Bq/kg

Note: Risk is shown relative to daily recommended maximum exposure to non-background radiation of 1000 µSv/year. Note that natural background radiation averages around 2400 µSv/year so in reality these risks are probably extremely overstated! With infrequent handling and safe storage natural radioactive minerals do not usually pose much risk.

Interactive Simulator:

Note: The mass selector refers to the mass of radioactive mineral present, not the full specimen, also be aware that the matrix may also be radioactive, possibly more radioactive than this mineral!

Mass of radioactive mineral:

Shielding material:

Activity: –

Distance	Dose rate	Risk
1 cm
10 cm
1 m

The external dose rate (D) from a radioactive mineral is estimated by summing the gamma radiation contributions from its Uranium, Thorium, and Potassium content, disregarding daughter-product which may have a significant effect in some cases (eg 'pitchblende'). This involves multiplying the activity (A, in Bq) of each element by its specific gamma ray constant (Γ), which accounts for its unique gamma emissions. The total unshielded dose at 1 cm is then scaled by the square of the distance (r, in cm) and multiplied by a shielding factor (μ_shield). This calculation provides a 'worst-case' or 'maximum risk' estimate because it assumes the sample is a point source and entirely neglects any self-shielding where radiation is absorbed within the mineral itself, meaning actual doses will typically be lower. The resulting dose rate (D) is expressed in microsieverts per hour (μSv/h).

D = ((A_U × Γ_U) + (A_Th × Γ_Th) + (A_K × Γ_K)) / r² × μ_shield

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 SiderophylliteHide

mindat.org URL:

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Raman and XRD data at RRUFF project

References and PDF downloads at RRUFF project

American Mineralogist Crystal Structure Database

Handbook of Mineralogy page PDF

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References for SiderophylliteHide

Reference List:

Lewis, H.C. (1881) On siderophyllite - a new mineral. Proceedings of the Academy of Natural Sciences of Philadelphia: 32: 254-255.

Coats, Robert R., Fahey, Joseph J. (1944) Siderophyllite from Brooks Mountain, Alaska. American Mineralogist, 29 (9-10) 373-377

RUTHERFORD, M. J. (1973) The Phase Relations of Aluminous Iron Biotites in the System KAlSi3O8-KAlSiO4-Al2O3-Fe-O-H. Journal of Petrology, 14 (1). 159-180 doi:10.1093/petrology/14.1.159

Albertini, Claudio (1983) Famous Mineral Localities: Baveno, Italy. The Mineralogical Record, 14 (3) 157-168

Rieder, M., Cavazzini, G., D’Yakonov, Y.S., Frank-Kamenetskii, V.A., Gottardt, G., Guggenheim, S., Koval, P.V., Muller, G., Neiva, A.M.R., Radoslovich, E.W., Robert, J.L., Sassi, F.P., Takeda, H., Weiss, Z., Wones, D.R. (1998) Nomenclature of the micas. The Canadian Mineralogist, 36 (3) 905-912

Brigatti, Maria Franca; Lugli, Cristina; Poppi, Luciano; Foord, Eugene E.; Kile, Daniel E. (2000) Crystal chemical variations in Li- and Fe-rich micas from Pikes Peak batholith (central Colorado). American Mineralogist, 85 (9). p.1275-1286. doi:10.2138/am-2000-8-920

(2001) Siderophyllite. Handbook of Mineralogy. Mineralogical Society of America

Brigatti, Maria Franca, Kile, Daniel E., Poppi, Luciano (2003) Crystal structure and chemistry of lithium-bearing trioctahedral micas-3T. European Journal of Mineralogy, 15 (2) 349-355 doi:10.1127/0935-1221/2003/0015-0349

Förster, H.-J., Tischendorf, G., Rhede, D., Naumann, R., Gottesmann, B., Lange, W. (2005) Cs-rich lithium micas and Mn-rich lithian siderophyllite in miarolitic NYF pegmatites of the Königshain granite, Lausitz, Germany. Neues Jahrbuch für Mineralogie - Abhandlungen, 182 (1) 81-93 doi:10.1127/0077-7757/2005/0032

Aspiotis, Stylianos, Schlüter, Jochen, Redhammer, Günther J., Mihailova, Boriana (2022) Non-destructive determination of the biotite crystal chemistry using Raman spectroscopy: how far we can go? European Journal of Mineralogy, 34 (6). 573-590 doi:10.5194/ejm-34-573-2022

Localities for SiderophylliteHide

Showing 157 localities.

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

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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
Catamarca Province Sierra de Ancasti El Portezuelo ⓘ El Portezuelo Granite	COLOMBO +2 other references

Australia
Tasmania Dorset municipality Tomahawk ⓘ Tomahawk river phonolite dyke	Everard et al. (2004)

Brazil
Amazonas Presidente Figueiredo Pitinga mine ⓘ Água Boa pluton	Lemanski (n.d.) +1 other reference
Bahia Floresta Azul ⓘ Floresta Azul alkaline complex	Alves Santos et al. (2021)
Itabuna ⓘ Itabuna syenitic batholith	Leandro et al. (2022)
Goiás Monte Alegre de Goiás Mangabeira tin deposit ⓘ Periquito mine	M. Abrahao Moura et al. et al. (2)
Teresina de Goiás Sucuri massif ⓘ Vaca Velha claim	Raimbault (1993) +1 other reference
Mato Grosso Peixoto de Azevedo Peixoto de Azevedo river ⓘ Raimunda claim	Lopes et al. (2024)
Pará São Félix do Xingu ⓘ Mocambo Granite	Barros Neto et al. (2020)
Rondônia Ariquemes ⓘ Massangana Massif	Debowski et al. (2022)
ⓘ São Domingos intrusion	Debowski et al. (2022)
São Paulo Cajati ⓘ Desemborque pluton	Siachoque +2 other references

Canada
Newfoundland and Labrador Newfoundland ⓘ Hydra pegmatite	Malay et al. (2026)
Nova Scotia Lunenburg Co. New Ross ⓘ Walker Moly prospect (New Russell prospect)	O'Reilly et al. (1982)
Ontario Kenora District Root Lake pegmatite group Root Lake Area ⓘ McCombe pegmatites	Tindle et al. (2005)
Québec Montérégie La Vallée-du-Richelieu RCM Mont Saint-Hilaire ⓘ Poudrette quarry (De-Mix quarry; Demix quarry; Uni-Mix quarry; Carrière Mont Saint-Hilaire; MSH)	Lalonde et al. (1997)

China
Anhui Huangshan She Co. ⓘ Huangshan pluton	Duan et al. (2025)
Wuhu Wuwei County ⓘ Huangmeijian granite	Zhang et al. (2022)
Fujian Nanping Pucheng County ⓘ Maoyangtou U deposit (U deposit No. 570)	Chen Diyun et al. (1997)
Guangdong Shanwei Lufeng Co. ⓘ Tashan Sn deposit	Dezi Wang et al. (1995)
Yangjiang Yangchun Co. ⓘ Xinpengling granite	Yuan et al. (2026)
Guangxi Nandan-Hechi Sn-W metallogenic belt ⓘ Dachang ore field	Guo et al. (2022)
Hubei Shiyan Shennongjia Forest District ⓘ Shaxiongdong carbonatite	Dai et al. (2025)
Xianning Tongcheng Co. ⓘ Duanfengshan Mine	Yin et al. (2026)
Hunan Chenzhou Linwu Co. Xianghualing Sn-polymetallic ore field ⓘ Xianghualing Sn Mine	Wu et al. (2022)
Inner Mongolia Xilingol League (Xilinguole Prefecture) West Ujimqin Banner (Xiwuzhumuqin Co.) ⓘ Hua'aobaote Pb-Zn-Ag-polymetallic deposit	Wang et al. (2026)
Xilinhot City (Xilinhaote Co.) ⓘ Shihuiyao Rb-Nb-Ta-(Be-Li) deposit	Chen et al. (2023) +1 other reference
Jiangxi Ganzhou Huichang Co. Hecaokeng Uranium ore field ⓘ Caotaobei U deposit (U deposit No. 6722)	Chen Diyun et al. (1997)
Xikengjing Sn ore field (Mikengshan Sn ore field) ⓘ Yanbei Sn deposit	Changshi Liu et al. (1994) +1 other reference
Liaoning Dandong ⓘ Saima complex	Ma et al. (2023)
Qinghai Haixi Mongol and Tibetan Autonomous Prefecture Tianjun County ⓘ Chakabeishan rare-element pegmatites	Liu et al. (2022)
Tibet Qamdo Prefecture (Changdu Prefecture) Markam Co. (Mangkang Co.) ⓘ Rumei lamprophyres	Zeng et al. (2023)
Xinjiang Changji Autonomous Prefecture (Sanji Autonomous Prefecture) Qitai Co. (Gucheng Co.; Guqung Co.) Sabei intrusion ⓘ Sareshike Sn Mine	Yuping Su et al. (2007)

Czech Republic
Karlovy Vary Region Sokolov District Krásno ⓘ Huber stock (Huber shaft; Hub stock)	Rieder et al. (1970)
Ústí nad Labem Region Teplice District Krupka Knöttel area ⓘ Barbora adit	Rieder et al. (1970)
Steinknochen area ⓘ Nový Lukáš adit	Rieder et al. (1970)
ⓘ Starý Martin adit	Rieder et al. (1970)
Vysočina Region Žďár nad Sázavou District Bory ⓘ Dolní Bory	Schreyer et al. (1993)
ⓘ Pegmatite vein No. 4	Staněk (1997)

Egypt
ⓘ Eastern Desert	MinMag 63:821-836
Red Sea Governorate ⓘ Gabal El-Ineigi	Sami et al. (2017) +2 other references
ⓘ Kadabora-Abu Dob alkali-feldspar granite	Abdalla (2006)
ⓘ Um Safi	Mahdy et al. (2025) +1 other reference
Wadi Abu Rasheid ⓘ Leucogranite	Elsagheer et al. (2026)

Finland
Kymenlaakso Kotka ⓘ Pyterlite occurrence	Lemanski (n.d.)
Pyhtää ⓘ Outcrop of even grained granite	Lemanski (n.d.)
Päijänne Tavastia Orimattila ⓘ Artjärvi	Lemanski (n.d.)
Satakunta ⓘ Eurajoki	Haapala Ilmari 1977 Petrography and ...
ⓘ Tarkki	Lemanski (n.d.)
ⓘ Väkkärä	Lemanski (n.d.)
Uusimaa Loviisa ⓘ Liljendal	Lemanski (n.d.)
ⓘ Outcrop of aplite	Lemanski (n.d.)
Myrskylä ⓘ Granite outcrop	Lemanski (n.d.)

Finland/Russia
Wyborg batholith ⓘ Kotka	Lemanski (n.d.)
ⓘ Kymi intrusion	Haapala et al. (2005)
ⓘ Liljendal	Lemanski (n.d.)
ⓘ Myrskylä	Lemanski (n.d.)
ⓘ Pyhtää	Lemanski (n.d.)
ⓘ Ruotsenyhtää	Lemanski (n.d.)

France
New Caledonia Southern Province Thio ⓘ Koum Granodiorite	Cluzel et al. (2024)
Occitanie Aude Carcassonne Citou ⓘ Meyrac	Béziat et al. (1991)
Salsigne ⓘ Salsigne mine	Béziat et al. (1991)

Germany
Saxony Erzgebirgskreis Ehrenfriedersdorf ⓘ Sauberg Mine	Rieder et al. (1970)
Geyer ⓘ Raithalden	Rieder et al. (1970)
Sächsische Schweiz-Osterzgebirge Altenberg ⓘ Tin mine
Dippoldiswalde ⓘ Sadisdorf	Lauf (2006)

Greece
Peloponnese Laconia Monemvasia Molaoi ⓘ Molai deposit	Kevrekidis et al. (2024)

India
Maharashtra Konkan Division Raigad District Murud Murud-Janjira ⓘ Tephriphonolite outcrop	Dessai et al. (1990)
Rajasthan Nagaur District ⓘ Degana Mine	Roy et al. (2022)

Ireland
Leinster Carlow County ⓘ Aclare	Barros et al. (2022)
ⓘ Leinster Batholith	Barros et al. (2022)
Wicklow County Shillelagh ⓘ Moylisha	Barros et al. (2022)

Italy
Lombardy Varese Province ⓘ Cuasso al Monte	Pezzotta et al. (1999)
Cavagnano ⓘ Puricelli Quarry ?	Fabio Brignoli collection
Cuasso al Piano ⓘ Bonomi Quarry	Pezzotta et al. (1999)
Piedmont Verbano-Cusio-Ossola Province Baveno Oltrefiume Mount Camoscio ⓘ Locatelli quarry	Grill (1935)
ⓘ Seula mine	Albertini (1983)
Omegna Brughiere ⓘ Rio Inferno quarry	Albertini (2000) +1 other reference
Toceno Val di Crana Val di Crana pegmatites ⓘ Bosco pegmatite	Guastoni et al. (2019)
ⓘ Fiume pegmatite	Guastoni et al. (2019)
Trentino-Alto Adige/Südtirol Trento Province Castello Tesino ⓘ Cima D'Asta-Campo Regana	Ferretti et al. (2008)

Japan
Shiga Prefecture Nagahama City ⓘ Mount Tagami	Shirose (2021)

Kazakhstan
Abai Region Zharma District ⓘ Kvartsevoye Pegmatite Deposit	Oitseva et al. (2025)
East Kazakhstan Region ⓘ Shok-Karagai deposit	Pavel M. Kartashov (n.d.)
Jambyl Region Moiynkum District ⓘ Kara-Oba W deposit	Evseev (1995)

Morocco
Tanger-Tetouan-Al Hoceima Region Chefchaouen Province Beni Bousera massif ⓘ Amter pegmatite field	Giannoni et al. (2025)

Niger
Agadez Tchirozerine ⓘ Tarraouadji Massif	J. Fabriès and G. Rocci (1965)

Nigeria
Zamfara Maru ⓘ Bingi BIF formation	Mücke et al. (2015)

Norway
Agder Birkenes Begervannet ⓘ Vaselona (Begervannet 01)	[var: Magnesium-bearing Siderophyllite] Müller et al. (2006)
Søndrestjenn ⓘ Søndrestjenn 1 (Skåremyr)	[var: Magnesium-bearing Siderophyllite] Müller et al. (2006)
ⓘ Evje og Hornnes	Rosing-Schow et al. (2017)
Li ⓘ Li 02 Feldspar Quarry (Li gruve)	Müller et al. (2017)
ⓘ Froland	[var: Magnesium-bearing Siderophyllite] Rosing-Schow et al. (2017)
ⓘ Iveland	Rosing-Schow et al. (2017)
Telemark Drangedal Tørdal ⓘ Bratterud pegmatite	Wilhelmsen (2020)
ⓘ Heftetjern pegmatite	Wilhelmsen (2020)
ⓘ Høydalen	[var: Magnesium-bearing Siderophyllite] Rosing-Schow et al. (2018)
Kragerø Lindvikskollen-Kalstadgangen pegmatite ⓘ Kalstadgangen	De La Cruz et al. (2021)
ⓘ Lindvikskollen Quarry	De La Cruz et al. (2021)

Portugal
ⓘ Panasqueira Mines	Breiter et al. (2023)
Viseu Sátão Ferreira de Aves Aldeia Nova ⓘ Assunção Mine

Romania
Bistrița-Năsăud County Rodna Valea Vinului ⓘ Valea Vinului Mine	Papp et al. (2005)

Russia
Chelyabinsk Oblast Ilmen Mountains ⓘ Mine no. 125	Cherednichenko (2023)
Chukotka Autonomous Okrug Bilibinsky District ⓘ Kekura (Kekurnoe) deposit	Alekseev (2025)
Chukchi Peninsula (Chukotka Peninsula; Chukotski Peninsula) ⓘ Severny pluton	Alekseev (2025)
Khabarovsk Krai Verkhnebureinsky District Badzhalski ore District ⓘ Grustnoe deposit	Alekseev et al. (2017)
ⓘ Pravo-Urmiiskoe deposit (Pravo-Urmiisky)	Shunso Ishihara et al. (1997) +3 other references
ⓘ Vostochnoe deposit	Shunso Ishihara et al. (1997) +1 other reference
ⓘ Vysoky Sn deposit	Bortnikov et al. (2008)
Magadan Oblast Tenkinsky District Ust-Omchug ⓘ Butugychag Sn-U deposit	Goryachev (2001)
Primorsky Krai Dalnegorsk Urban District ⓘ Dalnegorsk	Grant et al. (2001)
Republic of Karelia Pitkyarantsky District Pitkyaranta mining district ⓘ Lupikko Mine	Pavel M. Kartashov (n.d.)
ⓘ Uuksu rare-metal granite dike complex	Konyshev et al. (2026)
Sakha Abyysky District ⓘ Kuranakh ore field	Trunilina et al. (2021)
Tomponsky District ⓘ Burgali Ore Field	Trunilina et al. (2024)
Ust-Yansky District Omchikandya Ore Field ⓘ Polyarnoe Deposit	Trunilina et al. (2024)
Verkhoyansk District Yana River Basin Yana-Adycha Region ⓘ Arga-Ynnakh-Khaya granite Massif	Trunilina et al. (2024)
Sverdlovsk Oblast Prigorodny District Yuzhakovo ⓘ Alabashka pegmatite field	Sokol et al. (2010)
ⓘ Kazennitsa vein (Kazionnitsa)	webcenter.ru (2002)
ⓘ Mokrusha Mine	Sokol et al. (2010)
Zabaykalsky Krai Aginsky District Khangilai pluton ⓘ Orlovka	Thomas et al. (2009)
Khiloksky District ⓘ Orlovskoye	Thomas et al. (2009)
Nerchinsky District Adun-Cholon Range ⓘ Sherlova Gora	Kasatkin et al. (2014)
Olovyanninsky District ⓘ Turga Massif	Ivanova et al. (2020)

Rwanda
Southern Province Muhanga District Nyamabuye Muhanga ⓘ Warusenge	Royal Museum for Central Africa
Western Province Ngororero District Muhororo ⓘ Buranga pegmatite	Bertossa (1968) +1 other reference

South Africa
Northern Cape Namakwa District Municipality Khâi-Ma Local Municipality Aggeneys ⓘ Black Mountain (Swartberg mine)	Rudnick et al. (2013)

Sweden
Uppsala County Uppsala Almunge ⓘ Almunge complex
Västerbotten County Storuman Pauträsk ⓘ Rostberget W occurrence

Switzerland
Ticino Locarno Centovalli ⓘ Gridone - Monte Limidario area	Weiβ et al. (2007)
Valais Hérens Vex Thyon ⓘ Crête de Thyon	Lemanski (n.d.)

UK
Northern Ireland County Down Mourne Mountains Newcastle ⓘ Greisen vein outcrop	Rieder et al. (1970)
ⓘ Lindsay's Leap	Nockholds et al. (1939)

Ukraine
Zhytomyr Oblast Korosten Raion ⓘ Perzhanskoe ore field (Perga Be deposit)	Liventseva (n.d.)

USA
Alaska Nome Census Area Port Clarence Mining District York Mountains ⓘ Brooks Mountain	AmMin 29:373
Arkansas Hot Spring County Magnet Cove ⓘ Diamond Jo Quarry	Henry Barwood - unpublished (2010)
ⓘ Jones Mill Quarry	Karl Estes (1998)
Colorado El Paso County ⓘ Crystal Park	Brigatti et al. (2000)
ⓘ Pikes Peak (TL)	Eckel et al. (1997)
Jefferson County ⓘ Wigwam Creek	Brigatti et al. (2000)
Park County ⓘ Harris Park	Brigatti et al. (2000)
Teller County Pikes Peak batholith ⓘ Lake George ring complex	Brigatti et al. (2000)
Massachusetts Worcester County Fitchburg ⓘ Rollstone Hill Quarries ?	Hitchen (1935)
Montana ⓘ Stillwater Complex	McCallum (1996)
New Hampshire Carroll County Albany Blue Mountain ⓘ Moose pocket	Rocks & Min. July-Aug 2005 +1 other reference
New Jersey Sussex County ⓘ Franklin Mining District ?	Earl Verbeek
North Carolina Dare County ⓘ Stumpy Point Pluton	Speer et al. (1981)
South Carolina Saluda County ⓘ Clouds Creek Pluton	Speer et al. (1981)
Virginia Bedford County Goode quadrangle ⓘ Lovingston formation	Dietrich (1990)
Wisconsin Marathon County Wausau Intrusive Complex ⓘ "Rotten granite" quarries	Falster (1987)

Zimbabwe
Mashonaland Central Bindura District ⓘ Freda Rebecca Mine	Asa Resource Group plc
Mazowe District ⓘ Mistress Mine	Martin (2020)
Midlands Gokwe North District ⓘ Sanyati Mine	Vetter et al. (1999)

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Siderophyllite

About SiderophylliteHide

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