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Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Fayette County, Iowa, USAi
Regional Level Types
Fayette CountyCounty
IowaState
USACountry

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PhotosMapsSearch
06199480017271984143952.jpg
Railroad Cut (1917 or earlier)

Fayette, Fayette County, Iowa, USA
06199480017271984143952.jpg
Railroad Cut (1917 or earlier)

Fayette, Fayette County, Iowa, USA
06199480017271984143952.jpg
Railroad Cut (1917 or earlier)

Fayette, Fayette County, Iowa, USA
Type:
Largest Settlements:
PlacePopulation
Oelwein6,153 (2017)
West Union2,409 (2017)
Fayette1,491 (2017)
Elgin649 (2017)
Clermont609 (2017)
Maynard499 (2017)
Mindat Locality ID:
44575
Long-form identifier:
mindat:1:2:44575:6
GUID (UUID V4):
0
Other Languages:
French:
comté de Fayette, Iowa, États-Unis
German:
Fayette County, Iowa, Vereinigte Staaten
Italian:
contea di Fayette, Iowa, Stati Uniti d'America
Russian:
Фейетт, Айова, Соединённые Штаты Америки
Simplified Chinese:
費耶特縣 , 艾奥瓦州, 美国
Spanish:
Condado de Fayette, Iowa, Estados Unidos
Albanian:
Fayette County, Iowa, Shtetet e Bashkuara të Amerikës
Arabic:
مقاطعة فاييت, آيوا, الولايات المتحدة
Armenian:
Ֆայետ շրջան, Այովա, Ամերիկայի Միացյալ Նահանգներ
Basque:
Fayette konderria , Iowa
Bavarian:
Fayette County, Iowa, Vaoanigte Stootn
Bishnupriya Manipuri:
ফায়েত কাউন্টি, আইৱা, তিলপারাষ্ট্র
Bulgarian:
Файет, Айова, Съединени американски щати
Cebuano:
Fayette County, Iowa
Dutch:
Fayette County, Iowa, Verenigde Staten
Esperanto:
Kantono Fayette, Iovao
Farsi/Persian:
شهرستان فایت، آیووا, آیووا, ایالات متحده آمریکا
Georgian:
ფაიეტის ოლქი, აიოვა, ამერიკის შეერთებული შტატები
Hebrew:
מחוז פאייט, איווה, ארצות הברית
Hungarian:
Fayette megye, Iowa, Amerikai Egyesült Államok
Japanese:
ファイエット郡, アイオワ州, アメリカ合衆国
Low Saxon/Low German:
Fayette County, Iowa, USA
Min Dong Chinese:
Fayette Gông, Iowa
Minnan / Hokkien-Taiwanese:
Fayette Kūn
Norwegian:
Fayette County, Iowa, USA
Polish:
Hrabstwo Fayette, Iowa, Stany Zjednoczone
Portuguese:
Condado de Fayette, Iowa, Estados Unidos
Romanian:
Comitatul Fayette, Iowa, Statele Unite ale Americii
Sardinian:
contea de Fayette, Iowa, Istados Unidos de Amèrica
Scottish Gaelic:
Fayette County, Iowa, Na Stàitean Aonaichte
Serbian:
Округ Фејет , Ајова, Сједињене Америчке Државе
Serbo-Croatian:
Fayette County, Iowa, Sjedinjene Američke Države
Swedish:
Fayette County, Iowa, USA
Traditional Chinese:
費耶特縣, 埃奧華州, 美國
Turkish:
Fayette, Iowa, Amerika Birleşik Devletleri
Ukrainian:
Фаєтт, Айова, Сполучені Штати Америки
Urdu:
فائیٹ کاؤنٹی، آئیووا, آئیووا, ریاستہائے متحدہ امریکا
Vietnamese:
Quận Fayette, Iowa, Chủng Quốc Hoa Kỳ
Waray:
Condado han Fayette, Iowa, Estados Unidos
Western Punjabi:
فایٹ کاؤنٹی، آئیووا, آئیووا, امریکہ


In area creek beds

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

Mineral list contains entries from the region specified including sub-localities

7 valid minerals.

Detailed Mineral List:

Baryte
Formula: BaSO4
Calcite
Formula: CaCO3
Dolomite
Formula: CaMg(CO3)2
Marcasite
Formula: FeS2
'Monazite Group'
Formula: REE(PO4)
Native Gold
Formula: Au
Pyrite
Formula: FeS2
Quartz
Formula: SiO2
Quartz var. Agate
Formula: SiO2
Description: Lake Superior agate
Quartz var. Carnelian
Formula: SiO2
Quartz var. Chalcedony
Formula: SiO2
Quartz var. Lake Superior Agate
Formula: SiO2

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Native Gold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
Pyrite2.EB.05aFeS2
Marcasite2.EB.10aFeS2
Group 4 - Oxides and Hydroxides
Quartz
var. Agate
4.DA.05SiO2
var. Chalcedony4.DA.05SiO2
4.DA.05SiO2
var. Lake Superior Agate4.DA.05SiO2
var. Carnelian4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Dolomite5.AB.10CaMg(CO3)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Baryte7.AD.35BaSO4
Unclassified
'Monazite Group'-REE(PO4)

List of minerals for each chemical element

CCarbon
C CalciteCaCO3
C DolomiteCaMg(CO3)2
OOxygen
O Quartz var. AgateSiO2
O BaryteBaSO4
O CalciteCaCO3
O Quartz var. ChalcedonySiO2
O DolomiteCaMg(CO3)2
O Monazite GroupREE(PO4)
O QuartzSiO2
O Quartz var. Lake Superior AgateSiO2
O Quartz var. CarnelianSiO2
MgMagnesium
Mg DolomiteCaMg(CO3)2
SiSilicon
Si Quartz var. AgateSiO2
Si Quartz var. ChalcedonySiO2
Si QuartzSiO2
Si Quartz var. Lake Superior AgateSiO2
Si Quartz var. CarnelianSiO2
PPhosphorus
P Monazite GroupREE(PO4)
SSulfur
S BaryteBaSO4
S MarcasiteFeS2
S PyriteFeS2
CaCalcium
Ca CalciteCaCO3
Ca DolomiteCaMg(CO3)2
FeIron
Fe MarcasiteFeS2
Fe PyriteFeS2
BaBarium
Ba BaryteBaSO4
AuGold
Au Native GoldAu

Fossils

There are 123 fossil localities from the PaleoBioDB database within this region.

These data are provided on an experimental basis and are taken from external databases. Mindat.org has no control currently over the accuracy of these data.

Occurrences123
Youngest Fossil Listed372 Ma (Late/Upper Devonian)
Oldest Fossil Listed461 Ma (Middle Ordovician)
Stratigraphic UnitsClick here to view 12 stratigraphic units.
Fossils from RegionClick here to show the list.
Accepted NameHierarchy Age
Porifera
phylum
Animalia : Porifera449.5 - 443.7 Ma
Paleozoic
Grewingkia
genus
Animalia : Cnidaria : Anthozoa : Streptelasmatidae : Grewingkia452 - 449.5 Ma
Late/Upper Ordovician
Cornulites
genus
Animalia : Mollusca : Cornulitidae : Cornulites449.5 - 443.7 Ma
Paleozoic
Cyrtolites
genus
Animalia : Mollusca : Tergomya : Cyrtonellida : Cyrtolitidae : Cyrtolites449.5 - 443.7 Ma
Paleozoic
Gastropoda
class
Animalia : Mollusca : Gastropoda449.5 - 433.4 Ma
Paleozoic
Bucanopsis
genus
Animalia : Mollusca : Gastropoda : Bellerophontidae : Bucanopsis449.5 - 443.7 Ma
Paleozoic
Cyclonema
genus
Animalia : Mollusca : Gastropoda : Platyceratidae : Cyclonema449.5 - 443.7 Ma
Paleozoic
Liospira
genus
Animalia : Mollusca : Gastropoda : Pleurotomariida : Eotomariidae : Liospira449.5 - 443.7 Ma
Paleozoic
Murchisonia
genus
Animalia : Mollusca : Gastropoda : Pleurotomariida : Murchisoniidae : Murchisonia449.5 - 443.7 Ma
Paleozoic
Ephippiorthoceras
genus
Animalia : Mollusca : Cephalopoda : Proteoceratidae : Ephippiorthoceras460.9 - 449.5 Ma
Ordovician
Isorthoceras
genus
Animalia : Mollusca : Cephalopoda : Proteoceratidae : Isorthoceras449.5 - 443.7 Ma
Paleozoic
Kionoceras
genus
Animalia : Mollusca : Cephalopoda : Orthoceratidae : Kionoceras460.9 - 449.5 Ma
Ordovician
Spyroceras
genus
Animalia : Mollusca : Cephalopoda : Pseudorthoceratidae : Spyroceras460.9 - 449.5 Ma
Ordovician
Probillingsites
genus
Animalia : Mollusca : Cephalopoda : Ascoceratidae : Probillingsites460.9 - 449.5 Ma
Ordovician
Endoceras
genus
Animalia : Mollusca : Cephalopoda : Endoceratidae : Endoceras460.9 - 449.5 Ma
Ordovician
Beloitoceras
genus
Animalia : Mollusca : Cephalopoda : Oncoceratidae : Beloitoceras449.5 - 443.7 Ma
Paleozoic
Charactoceras
genus
Animalia : Mollusca : Cephalopoda : Apsidoceratidae : Charactoceras460.9 - 449.5 Ma
Ordovician
Bivalvia
class
Animalia : Mollusca : Bivalvia452 - 443.7 Ma
Paleozoic
Arisaigia
genus
Animalia : Mollusca : Bivalvia : Nuculanida : Malletiidae : Arisaigia449.5 - 443.7 Ma
Paleozoic
Ctenodonta
genus
Animalia : Mollusca : Bivalvia : Solemyida : Ctenodontidae : Ctenodonta449.5 - 443.7 Ma
Paleozoic
Nuculites
genus
Animalia : Mollusca : Bivalvia : Nuculanida : Malletiidae : Nuculites449.5 - 443.7 Ma
Paleozoic
Leptodesma (Leiopteria)
subgenus
Animalia : Mollusca : Bivalvia : Ostreida : Pterineidae : Leptodesma : Leptodesma (Leiopteria)387.7 - 382.7 Ma
Devonian
Stenopareia
genus
Animalia : Arthropoda : Trilobita : Corynexochida : Illaenidae : Stenopareia440.8 - 433.4 Ma
Silurian
Anataphrus
genus
Animalia : Arthropoda : Trilobita : Asaphida : Asaphidae : Anataphrus452 - 449.5 Ma
Late/Upper Ordovician
Isotelus
genus
Animalia : Arthropoda : Trilobita : Asaphida : Asaphidae : Isotelus452 - 449.5 Ma
Late/Upper Ordovician
Ceraurus
genus
Animalia : Arthropoda : Trilobita : Phacopida : Cheiruridae : Ceraurus452 - 443.7 Ma
Paleozoic
Flexicalymene
genus
Animalia : Arthropoda : Trilobita : Phacopida : Calymenidae : Flexicalymene452 - 449.5 Ma
Late/Upper Ordovician
Gravicalymene
genus
Animalia : Arthropoda : Trilobita : Phacopida : Calymenidae : Gravicalymene449.5 - 443.7 Ma
Paleozoic
Bryozoa
phylum
Animalia : Bryozoa452 - 433.4 Ma
Paleozoic
Brachiopoda
phylum
Animalia : Brachiopoda449.5 - 443.7 Ma
Paleozoic
Orbiculoidea
genus
Animalia : Brachiopoda : Lingulata : Lingulida : Discinidae : Orbiculoidea449.5 - 443.7 Ma
Paleozoic
Dolerorthis
genus
Animalia : Brachiopoda : Rhynchonellata : Orthida : Hesperorthidae : Dolerorthis440.8 - 433.4 Ma
Silurian
Flabellitesia
genus
Animalia : Brachiopoda : Rhynchonellata : Orthida : Hesperorthidae : Flabellitesia440.8 - 433.4 Ma
Silurian
Glyptorthis
genus
Animalia : Brachiopoda : Rhynchonellata : Orthida : Glyptorthidae : Glyptorthis449.5 - 443.7 Ma
Paleozoic
Platystrophia
genus
Animalia : Brachiopoda : Rhynchonellata : Orthida : Platystrophiidae : Platystrophia440.8 - 433.4 Ma
Silurian
Leptaena
genus
Animalia : Brachiopoda : Strophomenata : Strophomenida : Rafinesquinidae : Leptaena440.8 - 433.4 Ma
Silurian
Rhynchonellida
order
Animalia : Brachiopoda : Rhynchonellata : Rhynchonellida440.8 - 433.4 Ma
Silurian
Lepidocyclus
genus
Animalia : Brachiopoda : Rhynchonellata : Rhynchonellida : Rhynchotrematidae : Lepidocyclus449.5 - 443.7 Ma
Paleozoic
Howellella
genus
Animalia : Brachiopoda : Rhynchonellata : Spiriferida : Delthyrididae : Howellella440.8 - 433.4 Ma
Silurian
Spinocyrtia
genus
Animalia : Brachiopoda : Rhynchonellata : Spiriferida : Spinocyrtiidae : Spinocyrtia387.7 - 382.7 Ma
Devonian
Tylothyris
genus
Animalia : Brachiopoda : Rhynchonellata : Spiriferida : Mucrospiriferidae : Tylothyris387.7 - 372.2 Ma
Devonian
Clintonella
genus
Animalia : Brachiopoda : Rhynchonellata : Atrypida : Atrypinidae : Clintonella440.8 - 433.4 Ma
Silurian
Pseudoatrypa
genus
Animalia : Brachiopoda : Rhynchonellata : Atrypida : Atrypidae : Pseudoatrypa387.7 - 382.7 Ma
Devonian
Spinatrypa
genus
Animalia : Brachiopoda : Rhynchonellata : Atrypida : Atrypidae : Spinatrypa382.7 - 372.2 Ma
Late/Upper Devonian
Cranaena
genus
Animalia : Brachiopoda : Rhynchonellata : Terebratulida : Cranaenidae : Cranaena387.7 - 372.2 Ma
Devonian
Pyrgocystis
genus
Animalia : Echinodermata : Edrioasteroidea : Pyrgocystidae : Pyrgocystis449.5 - 443.7 Ma
Paleozoic
Anartiocystis
genus
Animalia : Echinodermata : Rhombifera : Callocystitidae : Anartiocystis449.5 - 443.7 Ma
Paleozoic
Pleurocystites
genus
Animalia : Echinodermata : Rhombifera : Pleurocystitidae : Pleurocystites452 - 449.5 Ma
Late/Upper Ordovician
Iowacystis
genus
Animalia : Echinodermata : Soluta : Syringocrinida : Iowacystidae : Iowacystis452 - 449.5 Ma
Late/Upper Ordovician
Myeinocystites
genus
Animalia : Echinodermata : Soluta : Syringocrinida : Iowacystidae : Myeinocystites452 - 449.5 Ma
Late/Upper Ordovician
Diamphidiocystis
genus
Animalia : Echinodermata : Stylophora : Mitrata : Diamphidiocystis449.5 - 443.7 Ma
Paleozoic
Crinoidea
class
Animalia : Echinodermata : Crinoidea449.5 - 443.7 Ma
Paleozoic
Trichinocrinus
genus
Animalia : Echinodermata : Crinoidea : Rhodocrinitidae : Trichinocrinus449.5 - 443.7 Ma
Paleozoic
Compsocrinus
genus
Animalia : Echinodermata : Crinoidea : Monobathrida : Tanaocrinidae : Compsocrinus449.5 - 443.7 Ma
Paleozoic
Carabocrinus
genus
Animalia : Echinodermata : Crinoidea : Carabocrinidae : Carabocrinus452 - 449.5 Ma
Late/Upper Ordovician
Cupulocrinus
genus
Animalia : Echinodermata : Crinoidea : Cupulocrinus452 - 443.7 Ma
Paleozoic
Dendrocrinus
genus
Animalia : Echinodermata : Crinoidea : Dendrocrinidae : Dendrocrinus449.5 - 443.7 Ma
Paleozoic
Porocrinus
genus
Animalia : Echinodermata : Crinoidea : Porocrinus452 - 443.7 Ma
Paleozoic
Lophospiridae
family
Animalia : Mollusca : Gastropoda : Lophospiridae449.5 - 443.7 Ma
Paleozoic
Eunema quadrisulcata
species
Animalia : Mollusca : Gastropoda : Lophospiridae : Eunema : Eunema quadrisulcata449.5 - 443.7 Ma
Paleozoic
Nautiloidea
subclass
Animalia : Mollusca : Cephalopoda : Nautiloidea452 - 433.4 Ma
Paleozoic
Hormotoma gracilis
species
Animalia : Mollusca : Gastropoda : Murchisoniina : Hormotomidae : Hormotoma : Hormotoma gracilis449.5 - 443.7 Ma
Paleozoic
Archinacella rotunda
species
Animalia : Mollusca : Tergomya : Archinacellida : Archinacellidae : Archinacella : Archinacella rotunda449.5 - 443.7 Ma
Paleozoic
Cyclonema bilix
species
Animalia : Mollusca : Gastropoda : Euomphalina : Platyceratidae : Cyclonema : Cyclonema bilix449.5 - 443.7 Ma
Paleozoic
Brachytomaria semele
species
Animalia : Mollusca : Gastropoda : Murchisoniina : Phanerotrematidae : Brachytomaria : Brachytomaria semele449.5 - 443.7 Ma
Paleozoic
Sinuites subcompressa
species
Animalia : Mollusca : Gastropoda : Bellerophontida : Sinuitidae : Sinuites : Sinuites subcompressa449.5 - 443.7 Ma
Paleozoic
Calymenidae
family
Animalia : Arthropoda : Trilobita : Phacopida : Calymenidae440.8 - 433.4 Ma
Silurian
Dalmanellidae
family
Animalia : Brachiopoda : Rhynchonellata : Orthida : Dalmanellidae440.8 - 433.4 Ma
Silurian
Nuculites neglectus
species
Animalia : Mollusca : Bivalvia : Nuculanida : Nuculites : Nuculites neglectus449.5 - 443.7 Ma
Paleozoic
Palaeoneilo fecunda
species
Animalia : Mollusca : Bivalvia : Nuculanida : Palaeoneilo : Palaeoneilo fecunda449.5 - 443.7 Ma
Paleozoic
Strophomena (Strophodonta)
subgenus
Animalia : Brachiopoda : Strophomenata : Strophomenida : Strophodontidae : Strophomena (Strophodonta)387.7 - 382.7 Ma
Devonian
Hindia
genus
Animalia : Porifera : Demospongea : Streptosclerophorida : Hindiidae : Hindia449.5 - 443.7 Ma
Paleozoic
Scutelluidae
family
Animalia : Arthropoda : Trilobita : Corynexochida : Scutelluidae440.8 - 433.4 Ma
Silurian
Hindia sphaeroidalis
species
Animalia : Porifera : Demospongea : Streptosclerophorida : Hindiidae : Hindia : Hindia sphaeroidalis460.9 - 449.5 Ma
Ordovician
Aulocopella scelidos
species
Animalia : Porifera : Anthaspidellidae : Aulocopella : Aulocopella scelidos460.9 - 449.5 Ma
Ordovician
Aulocopella probolos
species
Animalia : Porifera : Anthaspidellidae : Aulocopella : Aulocopella probolos460.9 - 449.5 Ma
Ordovician
Aulocopella dactylos
species
Animalia : Porifera : Anthaspidellidae : Aulocopella : Aulocopella dactylos460.9 - 449.5 Ma
Ordovician
Plaesiomys subquadratus
species
Animalia : Brachiopoda : Rhynchonellata : Orthida : Plaesiomyidae : Plaesiomys : Plaesiomys subquadratus452 - 449.5 Ma
Late/Upper Ordovician
Cyclendoceras
genus
Animalia : Mollusca : Cephalopoda : Endoceratidae : Cyclendoceras460.9 - 449.5 Ma
Ordovician
Megamyonia unicostata
species
Animalia : Brachiopoda : Strophomenata : Strophomenida : Strophomenidae : Megamyonia : Megamyonia unicostata452 - 443.7 Ma
Paleozoic
Paucicrura corpulenta
species
Animalia : Brachiopoda : Rhynchonellata : Orthida : Dalmanellidae : Paucicrura : Paucicrura corpulenta452 - 449.5 Ma
Late/Upper Ordovician
Ectenaspis beckeri
species
Animalia : Arthropoda : Trilobita : Asaphida : Asaphidae : Ectenaspis : Ectenaspis beckeri449.5 - 443.7 Ma
Paleozoic
Zygospira resupinata
species
Animalia : Brachiopoda : Rhynchonellata : Atrypida : Anazygidae : Zygospira : Zygospira resupinata449.5 - 443.7 Ma
Paleozoic
Onniella quadrata
species
Animalia : Brachiopoda : Rhynchonellata : Orthida : Dalmanellidae : Onniella : Onniella quadrata449.5 - 443.7 Ma
Paleozoic
Thaerodonta recedens
species
Animalia : Brachiopoda : Strophomenata : Strophomenida : Sowerbyellidae : Eochonetes : Thaerodonta recedens452 - 443.7 Ma
Paleozoic
Eochonetes dignata
species
Animalia : Brachiopoda : Strophomenata : Strophomenida : Sowerbyellidae : Eochonetes : Eochonetes dignata449.5 - 443.7 Ma
Paleozoic
Orthograptus eucharis
species
Animalia : Hemichordata : Graptolithina : Diplograptoidea : Diplograptidae : Orthograptus : Orthograptus eucharis452 - 449.5 Ma
Late/Upper Ordovician
Tetraphalerella planodorsata
species
Animalia : Brachiopoda : Strophomenata : Strophomenida : Strophomenidae : Tetraphalerella : Tetraphalerella planodorsata449.5 - 443.7 Ma
Paleozoic
Plaesiomys occidentalis
species
Animalia : Brachiopoda : Rhynchonellata : Orthida : Plaesiomyidae : Plaesiomys : Plaesiomys occidentalis449.5 - 443.7 Ma
Paleozoic
Enoploura balanoides
species
Animalia : Echinodermata : Stylophora : Mitrata : Anomalocystitidae : Enoploura : Enoploura balanoides449.5 - 443.7 Ma
Paleozoic
Maquoketocrinus ornatus
species
Animalia : Echinodermata : Crinoidea : Diplobathrida : Rhodocrinitidae : Maquoketocrinus : Maquoketocrinus ornatus449.5 - 443.7 Ma
Paleozoic
Plicodendrocrinus casei
species
Animalia : Echinodermata : Crinoidea : Plicodendrocrinidae : Plicodendrocrinus : Plicodendrocrinus casei449.5 - 443.7 Ma
Paleozoic
Fossil LocalitiesClick to show 12 fossil localities

Other Databases

Wikipedia:https://en.wikipedia.org/wiki/Fayette_County,_Iowa
Wikidata ID:Q486184
GeoNames ID:4856473

Localities in this Region

Other Regions, Features and Areas that Intersect


This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.
 
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Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
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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.
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