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Sulfosalt

Chaméanite

(Cu,Fe)₄As(Se,S)₄
Crystal systemCubic
ClassSulfosalt
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Chaméanite specimen

Grey metallic inclusions of the extremely rare Cu-Se sulphosalt mineral chameanite from the type loclaity in Chamean (Chaméane Uranium Deposit, Chaméane, Sauxillanges, Puy-de-Dôme, Auvergne-Rhône-Alpes, France). Ex Vandenbroucke Museum collection from Waregem, Belgium. — Photo: David Hospital · CC BY-SA 4.0

Chaméanite

Chaméanite is an IMA-recognized mineral species in the sulfosalt class, with the chemical formula (Cu,Fe)₄As(Se,S)₄.

It crystallizes in the cubic crystal system.

Key properties: specific gravity 6.17; Metallic. R: (400) 27.4, (420) 27.1, (440) 26.8, (460) 26.5, (480) 26.1, (500) 26.6, (520) 26.9, (540) 27.1 luster.

IMA symbol Céa, IMA status: approved, named in 1980.

Occurs as late-stage deposits in veins cutting granite (Chaméane mine, France); in a telethermal selenium-rich hydrothermal polymetallic deposit, in calcite veins in amphibolites (Tuminico, Argentina).

It is found associated with Giraudite, eskebornite, geffroyite, ankerite (Chaméane mine, France); hakite, bukovite, cadmoselite, umangite (Tuminico, Argentina).

The name refers to the occurrence at the Chaméane mine, France.

Index entry. This entry combines official IMA/RRUFF species data with published physical-property data — a full written entry hasn’t been published yet. Browse more C minerals or help write this entry.