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Chaméanite

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Formula:
(Cu,Fe)4As(Se,S)4
System:
Isometric
Colour:
Grey
Lustre:
Metallic
Hardness:
Name:
Named for the locality, Chaméane, Puy-de-Dôme, France
Possibly identical to mgriite.

Classification of Chaméanite

Approved 1980
2.LA.35

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
L : Unclassified Sulfosalts
A : Without essential Pb
Dana 7th ed.:
3.2.8.1
3.2.8.1

3 : SULFOSALTS
2 : ø = 4
3.1.34

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

Place of Conservation of First Recorded Material:
National School of Mines, Paris, France
Geological Setting of First Recorded Material:
Late stage deposits cutting granites

Physical Properties of Chaméanite

Metallic
Diaphaneity (Transparency):
Opaque
Colour:
Grey
Streak:
(not reported)
Hardness (Mohs):
Hardness (Vickers):
VHN25=247 - 292 kg/mm2
Density:
6.17 g/cm3 (Calculated)

Crystallography of Chaméanite

Crystal System:
Isometric
Cell Parameters:
a = 11.039Å
Unit Cell Volume:
V 1,345.21 ų (Calculated from Unit Cell)
Z:
8
Morphology:
Anhedral grains.

Optical Data of Chaméanite

Type:
Isotropic
Colour in reflected light:
Dark gray

Chemical Properties of Chaméanite

Formula:
(Cu,Fe)4As(Se,S)4
Essential elements:
All elements listed in formula:

Relationship of Chaméanite to other Species

2.LA.10DervilliteAg2AsS2
2.LA.15DaomaniteCuPtAsS2
2.LA.20VaughaniteTlHgSb4S7
2.LA.25CriddleiteTlAg2Au3Sb10S10
2.LA.30Fettelite[Ag6As2S7][Ag10HgAs2S8]
2.LA.40ArcubisiteAg6CuBiS4
2.LA.45MgriiteCu3AsSe3
2.LA.50BenleonarditeAg8(Sb,As)Te2S3
2.LA.55TsnigriiteAg9SbTe3(S,Se)3
2.LA.60BorovskitePd3SbTe4
2.LA.65JonassoniteAuBi5S4
3.1.1ChalcociteCu2S
3.1.2DjurleiteCu31S16
3.1.3DigeniteCu9S5
3.1.4AniliteCu7S4
3.1.5RoxbyiteCu9S5
3.1.6SpionkopiteCu39S28
3.1.7GeeriteCu8S5
3.1.8CovelliteCuS
3.1.9BerzelianiteCu2Se
3.1.10BellidoiteCu2Se
3.1.11UmangiteCu3Se2
3.1.12YarrowiteCu9S8
3.1.13AthabascaiteCu5Se4
3.1.14KlockmanniteCuSe
3.1.15Krut'aiteCuSe2
3.1.16WeissiteCu2-xTe
3.1.17RickarditeCu7Te5
3.1.18VulcaniteCuTe
3.1.19BambollaiteCu(Se,Te)2
3.1.20LautiteCuAsS
3.1.21MgriiteCu3AsSe3
3.1.22CubaniteCuFe2S3
3.1.23BorniteCu5FeS4
3.1.24FukuchiliteCu3FeS8
3.1.25ChalcopyriteCuFeS2
3.1.26MooihoekiteCu9Fe9S16
3.1.27HaycockiteCu4Fe5S8
3.1.28IsocubaniteCuFe2S3
3.1.29IdaiteCu5FeS6
3.1.30NukundamiteCu3.4Fe0.6S4
3.1.31PutoraniteCu9(Fe,Ni)9S16
3.1.32Orickite2CuFeS2 · H2O
3.1.33EskeborniteCuFeSe2
3.1.35TalnakhiteCu9(Fe,Ni)8S16

Other Names for Chaméanite

Name in Other Languages:
Simplified Chinese:砷硒铜矿
Traditional Chinese:砷硒銅礦

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 Chaméanite

Reference List:
Johan, Z., Picot, P., Ruhlmann, F. (1982): Evolution paragénétique de la minéralisation uranifère de Chaméane (Puy-de-Dôme), France: chaméanite, geffroyite et giraudite, trois séléniures nouveaux de Cu, Fe, Ag et As. Tschermaks Mineralogische und Petrographische Mitteilungen 29, 151-167 (in French).

American Mineralogist: 67: 1074-1075.

Internet Links for Chaméanite

Localities for Chaméanite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Argentina
 
  • La Rioja
    • General Lamadrid department
      • Villa Castelli
        • Sierra de Cacho
Milka K. de Brodtkorb (2002) Las Especies Minerales de la Republica Argentina. Vol. 1 (elements, sulphides and sulphosalts). (Asociacion Mineralogica Argentina); de Brodtkorb, M. K., & Crosta, S. (2010). Reseña de la ubicación geográfica de los seleniuros de la Sierra de Umango, provincia de La Rioja. Revista de la Asociación Geológica Argentina, 67(2), 272-279.
Czech Republic
 
  • Bohemia (Böhmen; Boehmen)
    • Central Bohemia Region
W. H. Paar, D. Topa, E. Makovický, F. J. Culetto: "Milotaite, PdSbSe, a new palladium mineral, from Předbořice, Czech Republic", The Canadian Mineralogist 43, 689-694 (2005)
France
 
  • Auvergne
    • Puy-de-Dôme
      • Sauxillanges
        • Chaméane
Tschermaks Min.Petr.Mitt.(1982) 29, 151-167; Econ Geol (1997) 92:468-484
Mineral and/or Locality  
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