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Coloradoite

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Colorado State Flag
Formula:
HgTe
System:
Isometric
Colour:
Iron black tending ...
Lustre:
Metallic
Hardness:
Name:
Named in 1877 by Frederick Genth for the type localities which are in Colorado.
Also a variety of quartz latite that corresponds to the opdalitic magma-type of Niggli (1923).


Classification of Coloradoite

Approved, 'Grandfathered' (first described prior to 1959)
2.CB.05a

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
C : Metal Sulfides, M: S = 1: 1 (and similar)
B : With Zn, Fe, Cu, Ag, etc.
2.8.2.5

2 : SULFIDES
8 : AmXp, with m:p = 1:1
3.5.8

3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)
5 : Sulphides etc. of Hg and Tl

Physical Properties of Coloradoite

Metallic
Diaphaneity (Transparency):
Opaque
Colour:
Iron black tending toward gray
Hardness (Mohs):
Hardness (Vickers):
VHN100=25 - 28 kg/mm2
Tenacity:
Brittle
Fracture:
Irregular/Uneven, Sub-Conchoidal
Density:
8.10 g/cm3 (Measured)    8.092 g/cm3 (Calculated)

Optical Data of Coloradoite

Type:
Anisotropic
Anisotropism:
Moderate, dark brownish red to blue-gray
Colour in reflected light:
White with a slight grayish brown tint, tarnishing to dull purple

Chemical Properties of Coloradoite

Formula:
HgTe
Elements listed in formula:
Common Impurities:
Pb

Crystallography of Coloradoite

Crystal System:
Isometric
Class (H-M):
m3m (4/m 3 2/m) - Hexoctahedral
Cell Parameters:
a = 6.453Å
Unit Cell Volume:
V 268.71 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Massive, granular

Occurrences of Coloradoite

Type Occurrence of Coloradoite

Relationship of Coloradoite to other Species

Other Members of Group:
2.CB.AgmantiniteAg2MnSnS4
2.CB.05aHawleyiteCdS
2.CB.05aMetacinnabarHgS
2.CB.05cPolhemusite(Zn,Hg)S
2.CB.05bSakuraiite(Cu,Zn,Fe)3(In,Sn)S4
2.CB.05aSphaleriteZnS
2.CB.05aStilleiteZnSe
2.CB.05aTiemanniteHgSe
2.CB.05UM1998-15-S:CuFeZnCu2Fe3Zn5S10
2.CB.05aRudashevskyite(Fe,Zn)S
2.CB.10aChalcopyriteCu1+Fe3+S2
2.CB.10aEskeborniteCuFeSe2
2.CB.10aGalliteCuGaS2
2.CB.10bHaycockiteCu4Fe5S8
2.CB.10aLenaiteAgFeS2
2.CB.10bMooihoekiteCu9Fe9S16
2.CB.10bPutoraniteCu1.1Fe1.2S2
2.CB.10aRoquesiteCuInS2
2.CB.10bTalnakhiteCu9Fe8S16
2.CB.10aLaforêtiteAgInS2
2.CB.15aČernýiteCu2CdSnS4
2.CB.15aFerrokësteriteCu2(Fe,Zn)SnS4
2.CB.15aHocartiteAg2FeSnS4
2.CB.15aIdaiteCu3FeS4
2.CB.15aKësteriteCu2ZnSnS4
2.CB.15aKuramiteCu3SnS4
2.CB.15bMohiteCu2SnS3
2.CB.15aPirquitasiteAg2ZnSnS4
2.CB.15aStanniteCu2FeSnS4
2.CB.15cStannoiditeCu8(Fe,Zn)3Sn2S12
2.CB.15aVelikiteCu2HgSnS4
2.CB.15cUM2006-11-S:CuFeGeZnCu8(Fe,Zn)3Ge2S12 (?)
2.CB.20ChatkaliteCu6FeSn2S8
2.CB.20MawsoniteCu6Fe2SnS8
2.CB.30ColusiteCu12VAs3S16
2.CB.30GermaniteCu13Fe2Ge2S16
2.CB.30GermanocolusiteCu13VGe3S16
2.CB.30NekrasoviteCu13VSn3S16
2.CB.30StibiocolusiteCu13V(Sb,Sn,As)3S16
2.CB.30OvamboiteCu10Fe3WGe3S16
2.CB.30MaikainiteCu10Fe3MoGe3S16
2.CB.35aHemusiteCu41+Cu22+SnMoS8
2.CB.35aKiddcreekiteCu6WSnS8
2.CB.35aPolkovicite(Fe,Pb)3(Ge,Fe)1-xS4
2.CB.35aRenierite(Cu1+,Zn)11Fe4(Ge4+,As5+)2S16
2.CB.35aVincienniteCu10Fe4SnAsS16
2.CB.35aMorozeviczitePb3Ge1-xS4
2.CB.35bCatamarcaiteCu6GeWS8
2.CB.40LautiteCuAsS
2.CB.45CadmoseliteCdSe
2.CB.45GreenockiteCdS
2.CB.45WurtziteZnS
2.CB.45RambergiteMnS
2.CB.45Buseckite(Fe,Zn,Mn)S
2.CB.55aCubaniteCuFe2S3
2.CB.55bIsocubaniteCuFe2S3
2.CB.60PicotpauliteTlFe2S3
2.CB.60RaguiniteTlFeS2
2.CB.65ArgentopyriteAgFe2S3
2.CB.65SternbergiteAgFe2S3
2.CB.70SulvaniteCu3VS4
2.CB.75VulcaniteCuTe
2.CB.80EmpressiteAgTe
2.CB.85MuthmanniteAuAgTe2
3.5.1CinnabarHgS
3.5.2HypercinnabarHgS
3.5.3MetacinnabarHgS
3.5.4ImiteriteAg2HgS2
3.5.5TiemanniteHgSe
3.5.6BalkaniteAg5Cu9HgS8
3.5.7Danielsite(Cu,Ag)14HgS8
3.5.9GortdrumiteCu18FeHg6S16
3.5.10Polhemusite(Zn,Hg)S
3.5.11CarliniteTl2S
3.5.12CrookesiteCu7TlSe4
3.5.13SabatieriteCu6TlSe4
3.5.14PicotpauliteTlFe2S3
3.5.15RaguiniteTlFeS2
3.5.16Thalcusite(Cu,Fe)4Tl2S4
3.5.17BukoviteCu4Tl2Se4
3.5.18GalliteCuGaS2
3.5.19RoquesiteCuInS2
3.5.20InditeFeIn2S4

Other Names for Coloradoite

Name in Other Languages:
Simplified Chinese:碲汞矿
Spanish:Coloradoita

Other Information

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

References for Coloradoite

Reference List:
Genth, F.A. (1877) Stated meeting, October 20th, 1876. Proceedings of the American Philosophical Society: 16: 287-289.

Genth, F.A. (1878) On some tellurium and vanadium minerals. Proceedings of the American Philosophical Society: 17: 113-123.

deJong, W.F. (1926) Die Struktur des Tiemannit und Kolodradoit. Zeitschrift für Kristallographie: 63: 466-472.

Thompson, R.M. (1949) The telluride minerals and their occurrence in Canada. American Mineralogist: 34: 341-382.

Le Maitre (ed.) (2002) Igneous Rocks - A Classification and Glossary of Terms. Cambridge Press.

Internet Links for Coloradoite

mindat.org URL:
http://www.mindat.org/min-1110.html
Please feel free to link to this page.
Specimens:
The following Coloradoite specimens are currently listed for sale on minfind.com.

Localities for Coloradoite

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.
Mineral and/or Locality  
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