Log InRegister
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreOur ScienceMindat Newsletter [Free Download]Contact Us
Donate to MindatSponsor a PageCorporate SponsorshipSponsored Pages
Learning CenterWhat Is a Mineral?The Most Common Minerals on EarthInformation for EducatorsMindat ArticlesMindat Newsletter [Free Download]The ElementsThe Mineral Quiz
Minerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDMinerals by CountryAlphabetical Mineral IndexAlphabetical Locality SearchMineral Association SearchList of CountriesLocalities Near MePhoto SearchSearch ArticlesSearch GlossaryThe Rock H. Currier Digital LibraryMore Search Options
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
MineralsPetrologyFossilsMeteoritesGeologic Time
Mining CompaniesStatisticsMineral MuseumsClubs & OrganizationsMineral Shows & EventsDevice SettingsTime Machine
Read DiscussionsIdentification Request
Photo SearchPhoto GalleriesSearch by ColourPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Ferripyrophyllite

A valid IMA mineral species
This page is currently not sponsored. Click here to sponsor this page.
09107510017271923078328.jpg
Ferripyrophyllite

Tulagai Pb-Cu deposit, Akshatau, Shet District, Karaganda Region, Kazakhstan
08412060017271923097374.jpg
Ferripyrophyllite

Bastnäs Mines, Riddarhyttan, Skinnskatteberg, Västmanland County, Sweden
05493380017271923151254.jpg
Ferripyrophyllite, etc.

Novo Horizonte, Bahia, Brazil
09107510017271923078328.jpg
Ferripyrophyllite

Tulagai Pb-Cu deposit, Akshatau, Shet District, Karaganda Region, Kazakhstan
08412060017271923097374.jpg
Ferripyrophyllite

Bastnäs Mines, Riddarhyttan, Skinnskatteberg, Västmanland County, Sweden
05493380017271923151254.jpg
Ferripyrophyllite, etc.

Novo Horizonte, Bahia, Brazil
09107510017271923078328.jpg
Ferripyrophyllite

Tulagai Pb-Cu deposit, Akshatau, Shet District, Karaganda Region, Kazakhstan
08665190017271923162858.jpg
Ferripyrophyllite

Bastnäs Mines, Riddarhyttan, Skinnskatteberg, Västmanland County, Sweden
Hide all sections | Show all sections

About FerripyrophylliteHide

Formula:
Fe3+Si2O5(OH)
Colour:
brownish yellow
Hardness:
1½ - 2
Specific Gravity:
2.97 - 3.01
Crystal System:
Monoclinic
Name:
for the ferric iron analogue of pyrophyllite
Pyrophyllite-Talc Group.
The ferric iron analogue of pyrophyllite.
Compare also minnesotaite.


Unique IdentifiersHide

Mindat ID:
1498
Long-form identifier:
mindat:1:1:1498:0

IMA Classification of FerripyrophylliteHide

Classification of FerripyrophylliteHide

Strunz-mindat (2026):
9.EC.10

9 : SILICATES (Germanates)
E : Phyllosilicates
C : Phyllosilicates with mica sheets, composed of tetrahedral and octahedral nets
Dana 8th ed.:
71.2.1.2

71 : PHYLLOSILICATES Sheets of Six-Membered Rings
2 : Sheets of 6-membered rings with 2:1 layers
Hey's CIM Ref.:
14.19.5

14 : Silicates not Containing Aluminum
19 : Silicates of Fe

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.

SymbolSourceReference for Standard
FprlIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
FprlWarr (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 FerripyrophylliteHide

Transparency:
Translucent
Colour:
Brownish yellow
Hardness:
1½ - 2 on Mohs scale
Tenacity:
Waxy
Density:
2.97 - 3.01 g/cm3 (Measured)    3.05 g/cm3 (Calculated)

Optical Data of FerripyrophylliteHide

Type:
Biaxial
RI values:
nα = 1.650 - 1.660 nβ = 1.676 - 1.678 nγ = 1.686 - 1.688
Max. Birefringence:
δ = 0.028 - 0.036
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 Âľm 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.

Surface Relief:
Very 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.
In focus
Dispersion:
r < v weak
Pleochroism:
Visible
Comments:
X = Y = greenish; Z = bright yellow.

Chemistry of FerripyrophylliteHide

Mindat Formula:
Fe3+Si2O5(OH)
Element Weights:
Element% weight
O45.927 %
Si26.874 %
Fe26.718 %
H0.482 %

Calculated from ideal end-member formula.
O
Si
Fe
H
Elements listed:
Fe, H, O, Si - search for minerals with similar chemistry
Common Impurities:
Mg,Ca,Al,K,Na

Crystallography of FerripyrophylliteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Cell Parameters:
a = 5.26 Å, b = 9.1 Å, c = 10.01 Å
β = 95.5°
Ratio:
a:b:c = 0.578 : 1 : 1.1
Unit Cell V:
476.93 ų (Calculated from Unit Cell)
Z:
4
Comment:
Space Group: n.d.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
9.6 Å(8)
4.54 Å(10)
3.17 Å(7)
2.62 Å(4)
2.47 Å(4)
1.725 Å(3)
1.518 Å(8)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 3b: Earth’s earliest hydrosphere>4.45
17 : Marine authigenic Hadean minerals (see also #24)
Stage 7: Great Oxidation Event<2.4
47a : [Near-surface hydration of prior minerals]
47h : [Near-surface oxidized, dehydrated minerals]

Type Occurrence of FerripyrophylliteHide

Synonyms of FerripyrophylliteHide

Other Language Names for FerripyrophylliteHide

Relationship of Ferripyrophyllite to other SpeciesHide

Member of:
Pyrophyllite-Talc Group
Other Members of Pyrophyllite-Talc Group:
MinnesotaiteFe2+3Si4O10(OH)2Tric. 1 : P1
PyrophylliteAl2Si4O10(OH)2Tric. 1
TalcMg3Si4O10(OH)2Tric. 1 : P1
WillemseiteNi3Si4O10(OH)2Mon.

Common AssociatesHide

Associations Based on Photo Data:
3 photos of Ferripyrophyllite associated with QuartzSiO2
1 photo of Ferripyrophyllite associated with Cerite-(CeCa)(Ce7Ca2)◻Mg(SiO4)3(SiO3OH)4(OH)3
1 photo of Ferripyrophyllite associated with TĂśrnebohmite-(Ce)Ce2Al(SiO4)2(OH)
1 photo of Ferripyrophyllite associated with Ferriallanite-(Ce)(CaCe)(Fe3+AlFe2+)O[Si2O7][SiO4](OH)

Related Minerals - Strunz-mindat GroupingHide

9.EC.MeifuiteKFe6(Si7Al)O19(OH)4Cl2Tric. 1 : P1
9.EC.BalestraiteKLi2V5+Si4O12Mon. 2 : B2
9.EC.VoloshiniteRb(LiAl1.5◻0.5)(Al0.5Si3.5)O10F2Mon. 2/m : B2/b
9.EC.05TalcMg3Si4O10(OH)2Tric. 1 : P1
9.EC.05MinnesotaiteFe2+3Si4O10(OH)2Tric. 1 : P1
9.EC.05WillemseiteNi3Si4O10(OH)2Mon.
9.EC.10FluorluanshiweiiteKLiAl1.5(Si3.5Al0.5)O10F2Mon. 2/m : B2/m
9.EC.10GarmiteCsLiMg2(Si4O10)F2Mon.
9.EC.10GorbunoviteCsLi2(Ti,Fe)Si4O10(F,OH,O)2Mon.
9.EC.10ManganiceladoniteK(MgMn3+◻)(Si4O10)(OH)2Mon.
9.EC.10LuanshiweiiteKLiAl1.5(Si3.5Al0.5)O10(OH)2Mon. 2/m : B2/b
9.EC.10PyrophylliteAl2Si4O10(OH)2Tric. 1
9.EC.15ParagoniteNaAl2(AlSi3O10)(OH)2Mon.
9.EC.15FerroaluminoceladoniteK(Fe2+Al◻)(Si4O10)(OH)2Mon. 2/m : B2/m
9.EC.15NanpingiteCsAl2(AlSi3O10)(OH,F)2Mon. 2/m : B2/b
9.EC.15FerroceladoniteK(Fe2+Fe3+◻)(Si4O10)(OH)2Mon. 2/m : B2/m
9.EC.15GanteriteBa0.5(Na,K)0.5Al2(Si2.5Al1.5)O10(OH)2Mon. 2/m : B2/b
9.EC.15KreiteriteCsLi2Fe3+(Si4O10)F2Mon.
9.EC.15RoscoeliteKV3+2(AlSi3O10)(OH)2Mon. 2/m : B2/b
9.EC.15AluminoceladoniteK(MgAl◻)(Si4O10)(OH)2Mon. 2/m : B2/m
9.EC.15Tobelite(NH4)Al2(AlSi3O10)(OH)2Mon. 2/m : B2/m
9.EC.15TainioliteKLiMg2(Si4O10)F2Mon. 2/m : B2/m
9.EC.15CeladoniteK(MgFe3+◻)(Si4O10)(OH)2Mon. 2/m : B2/m
9.EC.15ChromceladoniteK(MgCr◻)(Si4O10)(OH)2Mon. 2 : B2
9.EC.15MontdoriteKFe2+1.5Mn2+0.5Mg0.5Si4O10(F,OH)2Mon. 2/m : B2/m
9.EC.15ChromphylliteKCr2(AlSi3O10)(OH)2Mon. 2/m : B2/b
9.EC.15BoromuscoviteKAl2(BSi3O10)(OH)2Mon. 2/m
9.EC.15'UM1988-22-SiO:AlCaFFeHKLiMg'KLiMgAl2Si3O10F2Mon.
9.EC.15Chernykhite(Ba,Na)(V3+,Al,Mg)2((Si,Al)4O10)(OH)2Mon.
9.EC.15MuscoviteKAl2(AlSi3O10)(OH)2Mon. 2/m : B2/b
9.EC.20MasutomiliteK(LiAlMn2+)[AlSi3O10]F2Mon. 2 : B2
9.EC.20OxyphlogopiteK(Mg,Ti,Fe)3[(Si,Al)4O10](O,F)2Mon. 2/m : B2/m
9.EC.20'Chloroferrokinoshitalite'(Ba,K)(Fe2+,Mg)3(Al2Si2O10)(Cl,OH,F)2
9.EC.20SiderophylliteKFe2+2Al(Al2Si2O10)(OH)2Mon.
9.EC.20SokolovaiteCsLi2Al(Si4O10)F2Mon.
9.EC.20HendricksiteKZn3(Si3Al)O10(OH)2Mon. 2/m : B2/m
9.EC.20TetraferriphlogopiteKMg3(Si3Fe3+)O10(OH)2Mon. 2/m : B2/m
9.EC.20FluoranniteKFe2+3(Si3Al)O10F2Mon. 2/m : B2/m
9.EC.20AspidoliteNaMg3(AlSi3O10)(OH)2Mon. 2/m : B2/m
9.EC.20Suhailite(NH4)Fe2+3(AlSi3O10)(OH)2Mon. 2/m : B2/m
9.EC.20EphesiteNaLiAl2(Al2Si2O10)(OH)2Tric. 1 : P1
9.EC.20NorrishiteKLiMn3+2(Si4O10)O2Mon. 2/m : B2/m
9.EC.20PhlogopiteKMg3(AlSi3O10)(OH)2Mon. 2/m : B2/m
9.EC.20YangzhumingiteKMg2.5(Si4O10)F2Mon. 2/m : B2/m
9.EC.20OrloviteKLi2Ti(Si4O10)OFMon. 2 : B2
9.EC.20TetraferrianniteKFe2+3(Si3Fe3+)O10(OH)2Mon. 2/m : B2/m
9.EC.20ShirokshiniteK(NaMg2)(Si4O10)F2Mon. 2/m : B2/m
9.EC.20TrilithioniteK(Li1.5Al1.5)(AlSi3O10)(F,OH)2Mon. 2/m : B2/b
9.EC.20PolylithioniteKLi2Al(Si4O10)(F,OH)2Mon. 2/m : B2/b
9.EC.20ShirozuliteKMn2+3(Si3Al)O10(OH)2Mon. 2/m : B2/m
9.EC.20PreiswerkiteNaMg2Al(Al2Si2O10)(OH)2Mon. 2/m : B2/b
9.EC.20FluorophlogopiteKMg3(Si3Al)O10F2Mon. 2/m : B2/m
9.EC.20Wonesite(Na,K,◻)(Mg,Fe,Al)6(Si,Al)8O20(OH,F)4Mon. 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.20FluorotetraferriphlogopiteKMg3(Fe3+Si3O10)F2Mon. 2/m : B2/m
9.EC.20AnniteKFe2+3(AlSi3O10)(OH)2Mon. 2/m : B2/m
9.EC.20EastoniteKMg2Al(Al2Si2O10)(OH)2Mon.
9.EC.22'Pimelite'Ni3Si4O10(OH)2 ¡ 4H2OHex.
9.EC.30MargariteCaAl2(Al2Si2O10)(OH)2Mon. 2/m : B2/b
9.EC.35Kinoshitalite(Ba,K)(Mg,Mn2+,Al)3(Al2Si2O10)(OH)2Mon. 2/m : B2/m
9.EC.35Ferrokinoshitalite(Ba,K)(Fe2+,Mg)3(Al2Si2O10)(OH,F)2Mon. 2/m : B2/m
9.EC.35ClintoniteCaAlMg2(SiAl3O10)(OH)2Mon. 2/m : B2/m
9.EC.35Oxykinoshitalite(Ba,K)(Mg,Ti,Fe3+,Fe2+)3((Si,Al)4O10)(O,OH,F)2Mon. 2/m : B2/m
9.EC.35FluorokinoshitaliteBaMg3(Al2Si2O10)F2Mon. 2/m : B2/m
9.EC.35BityiteCaLiAl2(AlBeSi2O10)(OH)2Mon. 2/m : B2/b
9.EC.35Anandite(Ba,K)(Fe2+,Mg)3((Si,Al,Fe)4O10)(S,OH)2Mon. 2/m : B2/b
9.EC.40Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 ¡ nH2OMon. 2/m : B2/m
9.EC.40Beidellite(Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 ¡ nH2OMon. 2/m : B2/m
9.EC.40VolkonskoiteCa0.3(Cr,Mg,Fe)2((Si,Al)4O10)(OH)2 ¡ 4H2OMon.
9.EC.40NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 ¡ nH2OMon. 2/m : B2/m
9.EC.40Kurumsakite(Zn,Ni,Cu)8Al8V5+2Si5O35 ¡ 27H2O (?)Orth.
9.EC.40Yakhontovite(Ca,Na)0.5(Cu,Fe,Mg)2(Si4O10)(OH)2 ¡ 3H2OMon.
9.EC.45SwineforditeLi(Al,Li,Mg)3((Si,Al)4O10)2(OH,F)4 ¡ nH2OMon. 2/m : B2/m
9.EC.45HectoriteNa0.3(Mg,Li)3(Si4O10)(F,OH)2Mon. 2/m : B2/m
9.EC.45ZincsiliteZn3Si4O10(OH)2 ¡ 4H2O (?)Mon.
9.EC.45HanjiangiteBa2CaV3+Al(H2AlSi3O12)(CO3)2FMon. 2 : B2
9.EC.45SpadaiteMgSiO2(OH)2 ¡ H2O (?)
9.EC.45FerrosaponiteCa0.3(Fe2+,Mg,Fe3+)3((Si,Al)4O10)(OH)2 ¡ 4H2OMon.
9.EC.45Stevensite(Ca,Na)xMg3-x(Si4O10)(OH)2Mon.
9.EC.45SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 ¡ nH2OMon.
9.EC.45SauconiteNa0.3Zn3((Si,Al)4O10)(OH)2 ¡ 4H2OMon.
9.EC.50VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 ¡ 8H2OMon. 2/m
9.EC.52'Tarasovite'near NaKAl11Si13O40(OH)9 ¡ 3H2O
9.EC.55ClinochloreMg5Al(AlSi3O10)(OH)8Mon. 2/m : B2/m
9.EC.55Borocookeite(LiAl4◻)[BSi3O10](OH)8Mon. m : Bb
9.EC.55FranklinfurnaceiteCa2Fe3+Mn2+3Mn3+(Zn2Si2O10)(OH)8Mon. 2 : B2
9.EC.55PennantiteMn2+5Al(AlSi3O10)(OH)8Tric.
9.EC.55VakhrushevaiteMg5Cr(AlSi3O10)(OH)8Tric. 1
9.EC.55NimiteNi5Al(AlSi3O10)(OH)8Mon. 2/m : B2/m
9.EC.55Cookeite(LiAl4◻)[AlSi3O10](OH)8Mon. 2/m
9.EC.55GonyeriteMn2+5Fe3+(Fe3+Si3O10)(OH)8Orth.
9.EC.55ChamositeFe2+5Al(AlSi3O10)(OH)8Mon. 2/m : B2/m
9.EC.55'Orthochamosite'(Fe2+,Mg,Fe3+)5Al(AlSi3O10)(OH,O)8
9.EC.55BaileychloreZn5Al(AlSi3O10)(OH)8Tric. 1
9.EC.55SudoiteMg2Al3(AlSi3O10)(OH)8Mon. 2/m : B2/m
9.EC.55GlagoleviteNa(Mg,Al)6(AlSi3O10)(OH,O)8Tric. 1 : P1
9.EC.55DonbassiteAl4.33(AlSi3O10)(OH)8Mon. 2 : B2
9.EC.60DozyiteMg7Al2(Al2Si4O15)(OH)12Mon.
9.EC.60Rectorite(Na,Ca)Al4((Si,Al)8O20)(OH)4 ¡ 2H2OMon.
9.EC.60Corrensite(Mg,Fe)9((Si,Al)8O20)(OH)10 ¡ nH2OOrth.
9.EC.60AliettiteCa0.2Mg6((Si,Al)8O20)(OH)4 ¡ 4H2OMon.
9.EC.60Karpinskite(Ni,Mg)2Si2O5(OH)2 (?)Mon.
9.EC.60LunijianlaiteLi0.7Al6.2(AlSi7O20)(OH,O)10Mon.
9.EC.60TosuditeNa0.5(Al,Mg)6((Si,Al)8O18)(OH)12 ¡ 5H2OMon. 2 : B2
9.EC.60HydrobiotiteK(Mg,Fe2+)6((Si,Al)8O20)(OH)4 ¡ nH2OMon. 2/m : B2/m
9.EC.60Saliotite(Li,Na)Al3(AlSi3O10)(OH)5Mon. 2/m : B2/m
9.EC.60KulkeiteMg8Al(AlSi7O20)(OH)10Mon.
9.EC.60BrinrobertsiteNa0.3Al4(Si4O10)2(OH)4 ¡ 3.5 H2OMon.
9.EC.65Macaulayite(Fe,Al)24Si4O43(OH)2Mon.
9.EC.70BurckhardtitePb2(Fe3+Te6+)[AlSi3O8]O6Trig. 3m(32/m) : P31m
9.EC.75Niksergievite(Ba,Ca)2Al3(AlSi3O10)(CO3)(OH)6 ¡ nH2OMon.
9.EC.75Ferrisurite(Pb,Ca)2.4Fe3+2(Si4O10)(CO3)1.7(OH)3 ¡ nH2OMon.
9.EC.75Surite(Pb,Ca)3(Al,Fe2+,Mg)2((Si,Al)4O10)(CO3)2(OH)2Mon. 2 : P21
9.EC.80KegelitePb8Al4(Si8O20)(SO4)2(CO3)4(OH)8Mon.

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 FerripyrophylliteHide

References for FerripyrophylliteHide

Localities for FerripyrophylliteHide

Showing 12 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 symbol next to localities in the list can be used to jump to that position on the map.
Hide all sections | Show all sections

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.
Brazil
 
  • Bahia
Czech Republic
 
  • Karlovy Vary Region
    • Sokolov District
      • BřezovĂĄ
M.E. Ciriotti
Germany
 
  • Bavaria
    • Lower Bavaria
      • Freyung-Grafenau District
        • RĂśhrnbach
Habel (2001) +1 other reference
  • Saxony
    • Erzgebirgskreis
      • Eibenstock
Tschuchrow +5 other references
Italy
 
  • Sardinia
    • Metropolitan City of Cagliari
      • Sarroch
Fernando Caboni et al. (2023)
  • Tuscany
    • Metropolitan City of Florence
Cristiano et al. (2016)
Kazakhstan
 
  • Karaganda Region
    • Shet District
      • Akshatau (Aqshatau)
Tschuchrow +6 other references
Red Sea
 
Badaut et al. (1992)
Russia
 
  • Murmansk Oblast
Filina et al. (2019)
Sweden
 
  • Västmanland County
    • Skinnskatteberg
      • Riddarhyttan
Ulf Nyberg collection. Identification ...
USA
 
  • California
    • Mendocino County
      • Cloverdale area
Färber (n.d.)
Mars
 
  • Aeolis quadrangle
Tu et al. (2021)
Quick NavTopAbout FerripyrophylliteUnique IdentifiersIMA Classification Classification Mineral SymbolsPhysical Properties Optical Data Chemistry Crystallography X-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsOther LanguagesRelationshipsCommon AssociatesStrunz-MindatOther InformationInternet Links References Localities Locality List
 
and/or  
Mindat.orgÂŽ is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. MindatÂŽ and mindat.orgÂŽ are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are Š OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
Content on this site may not be used to train, fine-tune, or otherwise develop artificial intelligence or machine learning models without prior written permission - see our Terms & Conditions.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: October 13, 2026 15:41:31 Page updated: October 3, 2026 07:53:27
Go to top of page