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Xanthoconite 
Summary
Xanthoconite is a sulfosalt mineral with the chemical formula Ag3AsS3.
| Xanthoconite | |
|---|---|
 Xanthoconite from Imiter Mine, Boumalne-Dadès, Ouarzazate Province, Souss-Massa-Draâ Region, Morocco | |
| General | |
| Category | Sulfosalt mineral |
| Formula (repeating unit) | Ag3AsS3 |
| IMA symbol | Xcn[1] |
| Strunz classification | 2.GA.10 |
| Crystal system | Monoclinic |
| Crystal class | Prismatic (2/m) (same H-M symbol) |
| Space group | C2/c |
| Identification | |
| Formula mass | 494.72 g/mol |
| Color | Red-orange; Lemon yellow |
| Mohs scale hardness | 2.5–3.0 |
| Luster | Adamantine |
| Diaphaneity | Subtranslucent – opaque |
| Specific gravity | 5.54, range 5.5–5.6 |
| References | [2][3] |