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⇱ Uvite: Mineral information, data and localities.


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Uvite

A valid IMA mineral species
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About UviteHide

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Formula:
CaMg3(Al5Mg)(Si6O18)(BO3)3(OH)3(OH)
Colour:
brown, green, black, red
Lustre:
Vitreous
Hardness:
Specific Gravity:
3.115 (Calculated)
Crystal System:
Trigonal
Name:
Named for Uva Province, Sri Lanka, the first reported occurrence.
Originally redefined in 2010 by IMA, as a part of a nomenclature revision of the Tourmaline group. The approval was subsequently withdrawn by IMA in 2018 (IMA 2000-030a), since analytical work showed the type material to be a potentially new oxy-tourmaline.
Finally approved, with a different type locality (Elba, Italy) in 2020.
Notes:
— The official IMA name for this mineral species was uvite, redefined as part of a nomenclature revision of the tourmaline group (Henry et al., 2011). However, the approval was withdrawn by IMA in 2018 (IMA 2000-030a), since analysis showed that the type material may be a potentially new oxy-tourmaline. Uvite was finally approved in 2020 (IMA 2019-113), with the type locality on Elba, Italy.
— Most specimens historically designated as uvite are actually, as analyses have shown, the F-dominant end member, i.e., fluor-uvite, which is much more common than uvite.
— Without analysis, a 'uvite' specimen should be added as Fluor-uvite-Uvite Series.

Forms a series with feruvite.

Note that although Brumado, Brazil, was once (Henry et al., 2011) defined the type locality for uvite, it is not possible to assign "uvites" from Brumado to this species without a reliable analysis, as specimens have been analysed with both OH- and F-dominant compositions.

Relation of uvite to fluor-uvite: W(OH) <-> WF.

Relation of uvite to feruvite: YMg2+ <-> YFe2+.

The holotype uvite originated from interaction of B-rich fluids released within the crystallization of LCT pegmatites and surrounding metaserpentinites.


Unique IdentifiersHide

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Mindat ID:
54355
Long-form identifier:
mindat:1:1:54355:6

Similar NamesHide

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JuviteA rock subtype
UlviteA synonym of Ulvöspinel
UmiteA synonym of Humite
UvitaA synonym of 'Fluor-uvite-Uvite Series'

IMA Classification of UviteHide

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Approved
Approval history:
proposal no. 2019-113

Classification of UviteHide

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9.CK.05

9 : SILICATES (Germanates)
C : Cyclosilicates
K : [Si6O18]12- 6-membered single rings, with insular complex anions

Mineral SymbolsHide

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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
UvtIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
UtvThe Canadian Mineralogist (2019)The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download

Physical Properties of UviteHide

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Vitreous
Transparency:
Translucent
Colour:
Brown, green, black, red
Streak:
Grey
Hardness:
7½ on Mohs scale
Comment:
Ca.
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Conchoidal
Density:
3.115 g/cm3 (Calculated)

Optical Data of UviteHide

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Type:
Uniaxial (-)
RI values:
nω = 1.660(5) nε = 1.640(5)
Max. Birefringence:
δ = 0.020
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.

Surface Relief:
Moderate
Pleochroism:
Visible
Comments:
O = greenish brown, E = pale yellow, with O > E.

Chemistry of UviteHide

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Mindat Formula:
CaMg3(Al5Mg)(Si6O18)(BO3)3(OH)3(OH)
Element Weights:
Element% weight
O50.966 %
Si17.316 %
Al13.863 %
Mg9.990 %
Ca4.118 %
B3.333 %
H0.414 %

Calculated from ideal end-member formula.

Crystallography of UviteHide

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Crystal System:
Trigonal
Class (H-M):
3m - Ditrigonal Pyramidal
Space Group:
R3m
Cell Parameters:
a = 15.9519(10) Å, c = 7.2222(5) Å
Ratio:
a:c = 1 : 0.453
Unit Cell V:
1597.3 ų
Z:
3
Morphology:
Lozenge shaped to stubby prisms.

X-Ray Powder DiffractionHide

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Powder Diffraction Data:
d-spacingIntensity
4.237 Å(49)
3.994 Å(51)
3.497 Å(57)
2.973 Å(88)
2.584 Å(100)
2.047 Å(53)
1.925 Å(37)
1.666 Å(26)

Geological EnvironmentHide

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Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 4a: Earth’s earliest continental crust>4.4-3.0
19 : Granitic intrusive rocks
Near-surface Processes
23 : Subaerial aqueous alteration by non-redox-sensitive fluids (see also #47)
26 : Hadean detrital minerals
Stage 4b: Highly evolved igneous rocks>3.0
34 : Complex granite pegmatites
Stage 5: Initiation of plate tectonics<3.5-2.5
40 : Regional metamorphism (greenschist, amphibolite, granulite facies)

Type Occurrence of UviteHide

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General Appearance of Type Material:
euhedral crystals, up to 1 cm
Place of Conservation of Type Material:
mineralogical collections of the (1) Museo Civico di Storia Naturale, Corso Venezia 55, 20121 Milan, Italy, catalogue number M38848, and (2) the Museo di Storia Naturale, Università di Pisa, Via Roma 79, 56011 Calci (PI), Italy, catalogue number 19911
Geological Setting of Type Material:
holotype (2022 paper's) material: "center of a narrow (2-3 cm wide) vein" comprising aggregates of dark-coloured tourmaline, penetrating magnesite- and dolomite-bearing hydrothermally altered metaserpentinite

Synonyms of UviteHide

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Other Language Names for UviteHide

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Dutch:Uviet
German:Uvit

Relationship of Uvite to other SpeciesHide

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Other Members of Tourmaline:
AdachiiteCaFe3Al6(Si5AlO18)(BO3)3(OH)3(OH)Trig. 3m : R3m
Alumino-oxy-rossmanite◻Al3Al6(Si5AlO18)(BO3)3(OH)3OTrig. 3m : R3m
BosiiteNaFe3+3(Al4Mg2)(Si6O18)(BO3)3(OH)3OTrig. 3m : R3m
Celleriite◻(Mn2+2Al)Al6(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
'Chromium-dravite'NaMg3Cr3+6(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
Chromo-alumino-povondraiteNaCr3(Al4Mg2)(Si6O18)(BO3)3(OH)3OTrig. 3m : R3m
DarrellhenryiteNa(Al2Li)Al6(Si6O18)(BO3)3(OH)3OTrig. 3m : R3m
DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
DutrowiteNa(Fe2+2.5Ti0.5)Al6(Si6O18)(BO3)3(OH)3OTrig. 3m : R3m
ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
ErtliteNaAl3Al6(Si4B2O18)(BO3)3(OH)3OTrig. 3m : R3m
Ferro-bosiiteNaFe3+3(Al4Fe2+2)(Si6O18)(BO3)3(OH)3OTrig. 3m : R3m
FeruviteCaFe2+3(Al5Mg)(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
Fluor-buergeriteNaFe3+3Al6(Si6O18)(BO3)3O3FTrig. 3m : R3m
Fluor-draviteNaMg3Al6(Si6O18)(BO3)3(OH)3FTrig. 3m : R3m
Fluor-elbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3FTrig. 3m : R3m
Fluor-liddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3FTrig. 3m : R3m
Fluor-rossmanite◻(Al2Li)Al6(Si6O18)(BO3)3(OH)3FTrig. 3m(32/m) : R3m
Fluor-schorlNaFe2+3Al6(Si6O18)(BO3)3(OH)3FTrig. 3m : R3m
Fluor-tsilaisiteNaMn2+3Al6(Si6O18)(BO3)3(OH)3FTrig. 3m : R3m
Fluor-uviteCaMg3(Al5Mg)(Si6O18)(BO3)3(OH)3FTrig. 3m : R3m
Foitite◻(Fe2+2Al)Al6(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
LiddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
LucchesiiteCaFe2+3 Al6(Si6O18)(BO3)3(OH)3OTrig. 3m : R3m
Magnesio-dutrowiteNa(Mg2.5Ti0.5)Al6(Si6O18)(BO3)3(OH)3OTrig. 3m : R3m
Magnesio-foitite◻(Mg2Al)Al6(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
Magnesio-lucchesiiteCaMg3Al6(Si6O18)(BO3)3(OH)3OTrig. 3m : R3m
MaruyamaiteK(Al2Mg)(Al5Mg)(Si6O18)(BO3)3(OH)3OTrig. 3m : R3m
OleniteNaAl3Al6(Si6O18)(BO3)3O3(OH)Trig. 3m : R3m
Oxy-chromium-draviteNaCr3(Cr4Mg2)(Si6O18)(BO3)3(OH)3O Trig. 3m : R3m
Oxy-draviteNa(Al2Mg)(Al5Mg)(Si6O18)(BO3)3(OH)3OTrig. 3m : R3m
Oxy-foitite◻(Fe2+Al2)Al6(Si6O18)(BO3)3(OH)3OTrig. 3m(32/m) : R3m
Oxy-schorlNa(Fe2+2Al)Al6(Si6O18)(BO3)3(OH)3OTrig. 3m : R3m
'Oxy-uvite'CaMg3Al6(Si6O18)(BO3)3(OH)3O
Oxy-vanadium-draviteNaV3(V4Mg2)(Si6O18)(BO3)3(OH)3OTrig. 3m : R3m
PovondraiteNaFe3+3(Mg2Fe3+4)(Si6O18)(BO3)3(OH)3OTrig. 3m : R3m
PrincivalleiteNa(Mn2Al)Al6(Si6O18)(BO3)3(OH)3OTrig. 3m : R3m
Rossmanite◻(LiAl2)Al6(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
SchorlNaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
TsilaisiteNaMn2+3Al6(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
'UM2000-64-SiO:BFeHKMg'(K,Na)Fe3+3(Mg2Fe3+4)Si6O18(BO3)3(OH)3O
'UM2008-52-SiO:AlBCaFFeHLiMgNa'(Ca,Na,◻)(Al,Li,Fe,Mg)3Al6[Si6O18](BO3)3(OH,O)3(F,O)
'Unnamed (F analogue of feruvite)'CaFe2+3(Al5Mg)(Si6O18)(BO3)3(OH)3F
'Unnamed (Mn2+-F-analogue of foitite)'◻(Mn2+2Al)Al6(Si6O18)(BO3)3(OH)3F ?
'Unnamed (Pb-analogue of Fluor-liddicoatite)'Pb(Li2Al)Al6(Si6O18)(BO3)3(OH)3F
Vanadio-oxy-chromium-draviteNaV3(Cr4Mg2)(Si6O18)(BO3)3(OH)3O Trig. 3m : R3m
Vanadio-oxy-draviteNaV3(Al4Mg2)(Si6O18)(BO3)3(OH)3OTrig. 3m : R3m
Forms a series with:

Common AssociatesHide

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Associated Minerals Based on Photo Data:
16 photos of Uvite associated with MagnesiteMgCO3
7 photos of Uvite associated with QuartzSiO2
3 photos of Uvite associated with Florencite-(Ce)CeAl3(PO4)2(OH)6
3 photos of Uvite associated with DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
3 photos of Uvite associated with SerendibiteCa4[Mg6Al6]O4[Si6B3Al3O36]
3 photos of Uvite associated with SpinelMgAl2O4
2 photos of Uvite associated with WoodhouseiteCaAl3(PO4)(SO4)(OH)6
1 photo of Uvite associated with Pyroxene GroupADSi2O6
1 photo of Uvite associated with 'Sapphire'Al2O3

Related Minerals - Strunz-mindat GroupingHide

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9.CK.AdachiiteCaFe3Al6(Si5AlO18)(BO3)3(OH)3(OH)Trig. 3m : R3m
9.CK.Magnesio-dutrowiteNa(Mg2.5Ti0.5)Al6(Si6O18)(BO3)3(OH)3OTrig. 3m : R3m
9.CK.DarrellhenryiteNa(Al2Li)Al6(Si6O18)(BO3)3(OH)3OTrig. 3m : R3m
9.CK.Fluor-schorlNaFe2+3Al6(Si6O18)(BO3)3(OH)3FTrig. 3m : R3m
9.CK.PrincivalleiteNa(Mn2Al)Al6(Si6O18)(BO3)3(OH)3OTrig. 3m : R3m
9.CK.Alumino-oxy-rossmanite◻Al3Al6(Si5AlO18)(BO3)3(OH)3OTrig. 3m : R3m
9.CK.DutrowiteNa(Fe2+2.5Ti0.5)Al6(Si6O18)(BO3)3(OH)3OTrig. 3m : R3m
9.CK.Ferro-bosiiteNaFe3+3(Al4Fe2+2)(Si6O18)(BO3)3(OH)3OTrig. 3m : R3m
9.CK.BosiiteNaFe3+3(Al4Mg2)(Si6O18)(BO3)3(OH)3OTrig. 3m : R3m
9.CK.Celleriite◻(Mn2+2Al)Al6(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
9.CK.05FeruviteCaFe2+3(Al5Mg)(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
9.CK.05'Chromium-dravite'NaMg3Cr3+6(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
9.CK.05Fluor-rossmanite◻(Al2Li)Al6(Si6O18)(BO3)3(OH)3FTrig. 3m(32/m) : R3m
9.CK.05Oxy-schorlNa(Fe2+2Al)Al6(Si6O18)(BO3)3(OH)3OTrig. 3m : R3m
9.CK.05Fluor-elbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3FTrig. 3m : R3m
9.CK.05DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
9.CK.05'Oxy-uvite'CaMg3Al6(Si6O18)(BO3)3(OH)3O
9.CK.05Fluor-uviteCaMg3(Al5Mg)(Si6O18)(BO3)3(OH)3FTrig. 3m : R3m
9.CK.05Foitite◻(Fe2+2Al)Al6(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
9.CK.05Vanadio-oxy-draviteNaV3(Al4Mg2)(Si6O18)(BO3)3(OH)3OTrig. 3m : R3m
9.CK.05Fluor-buergeriteNaFe3+3Al6(Si6O18)(BO3)3O3FTrig. 3m : R3m
9.CK.05'Unnamed (F analogue of feruvite)'CaFe2+3(Al5Mg)(Si6O18)(BO3)3(OH)3F
9.CK.05ErtliteNaAl3Al6(Si4B2O18)(BO3)3(OH)3OTrig. 3m : R3m
9.CK.05TsilaisiteNaMn2+3Al6(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
9.CK.05Fluor-liddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3FTrig. 3m : R3m
9.CK.05ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
9.CK.05Fluor-tsilaisiteNaMn2+3Al6(Si6O18)(BO3)3(OH)3FTrig. 3m : R3m
9.CK.05Oxy-foitite◻(Fe2+Al2)Al6(Si6O18)(BO3)3(OH)3OTrig. 3m(32/m) : R3m
9.CK.05LiddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
9.CK.05Vanadio-oxy-chromium-draviteNaV3(Cr4Mg2)(Si6O18)(BO3)3(OH)3O Trig. 3m : R3m
9.CK.05Rossmanite◻(LiAl2)Al6(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
9.CK.05Oxy-vanadium-draviteNaV3(V4Mg2)(Si6O18)(BO3)3(OH)3OTrig. 3m : R3m
9.CK.05OleniteNaAl3Al6(Si6O18)(BO3)3O3(OH)Trig. 3m : R3m
9.CK.05'UM2000-64-SiO:BFeHKMg'(K,Na)Fe3+3(Mg2Fe3+4)Si6O18(BO3)3(OH)3O
9.CK.05Magnesio-lucchesiiteCaMg3Al6(Si6O18)(BO3)3(OH)3OTrig. 3m : R3m
9.CK.05PovondraiteNaFe3+3(Mg2Fe3+4)(Si6O18)(BO3)3(OH)3OTrig. 3m : R3m
9.CK.05LucchesiiteCaFe2+3 Al6(Si6O18)(BO3)3(OH)3OTrig. 3m : R3m
9.CK.05Chromo-alumino-povondraiteNaCr3(Al4Mg2)(Si6O18)(BO3)3(OH)3OTrig. 3m : R3m
9.CK.05Fluor-draviteNaMg3Al6(Si6O18)(BO3)3(OH)3FTrig. 3m : R3m
9.CK.05Oxy-draviteNa(Al2Mg)(Al5Mg)(Si6O18)(BO3)3(OH)3OTrig. 3m : R3m
9.CK.05Oxy-chromium-draviteNaCr3(Cr4Mg2)(Si6O18)(BO3)3(OH)3O Trig. 3m : R3m
9.CK.05'Luinaite-(OH)'NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)Mon. m : Bm
9.CK.05SchorlNaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
9.CK.05Magnesio-foitite◻(Mg2Al)Al6(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
9.CK.05MaruyamaiteK(Al2Mg)(Al5Mg)(Si6O18)(BO3)3(OH)3OTrig. 3m : R3m
9.CK.10Abenakiite-(Ce)Na26Ce6(Si6O18)(PO4)6(CO3)6(SO2)OTrig. 3 : R3
9.CK.15ScawtiteCa7(Si3O9)2CO3 · 2H2OMon. 2/m
9.CK.20Thorosteenstrupine(Ca,Th,Mn)3Si4O11F · 6H2O
9.CK.20Steenstrupine-(Ce)Na14Mn2+2Fe3+2Ce6Zr(Si6O18)2(PO4)6(PO3OH)(OH)2 · 2H2OTrig. 3m(32/m) : R3m

Fluorescence of UviteHide

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Other InformationHide

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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 UviteHide

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References for UviteHide

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Reference List:

Localities for UviteHide

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Showing 24 localities.

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the 👁 Image
symbol to view information about a locality. The 👁 Image
symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

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👁 Image
- This locality has map coordinates listed.
👁 Image
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. 👁 Image
- Good crystals or important locality for species.
👁 Image
- 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.
Austria
  • Salzburg
    • Hallein District
      • Scheffau am Tennengebirge
        • Grubach
          • Moosegg
Strasser (1998) +2 other references
Brazil
  • Bahia
Barbosa et al. (2000) +1 other reference
Canada
  • British Columbia
    • New Westminster Mining Division
      • Giant Copper deposit
Fischer et al. (2023)
  • Northwest Territories
    • O'Grady Lake area
Scribner et al. (2018)
  • Québec
    • Abitibi-Témiscamingue
      • Rouyn-Noranda TE
Daver et al. (2020)
    • Outaouais
      • Les Collines-de-l'Outaouais RCM
        • Chelsea
          • Autoroute 5
            • Autoroute 5 extension
              • Autoroute 5 roadcuts
Belley et al. (2016)
China
  • Jilin
    • Tonghua
      • Ji'an Co.
Yang et al. (2023)
Finland
  • Central Finland
    • Pihtipudas
      • Ritovuori
Grönholm (1987)
India
  • Karnataka
Devaraju et al. (1999)
Indonesia
  • West Java Province
    • Garut Regency
Etzel et al. (2015)
Italy (TL)
  • Tuscany
    • Livorno Province
      • Campo nell'Elba
        • San Piero in Campo
Williams et al. (2010) +1 other reference
Madagascar
  • Vakinankaratra
    • Antsirabe II District
      • Ibity
        • Sahatany Valley
Gadas et al. (2023)
Poland
  • Lower Silesian Voivodeship
    • Karkonosze County
      • Kowary
Sęk (2018)
  • Silesian Voivodeship
    • Tarnowskie Góry County
      • Miasteczko Śląskie
Nowinska (2020)
Russia
  • Chukotka Autonomous Okrug
    • Bilibinsky District
Nagornaya et al. (2021)
Switzerland
  • Valais
    • Brig
      • Termen
Wilson (2023)
UK
  • England
Duchoslav et al. (2017)
USA
  • New Jersey
    • Sussex County
King (n.d.)
King (n.d.)
  • New York
    • St. Lawrence County
      • De Kalb
Nelen et al. (1977)
- (eski / Noah) +1 other reference
Nelen et al. (1977)
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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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