Sylvanite
Sylvanite or silver gold telluride, chemical formula (Ag,Au)Te2, is the most common telluride of gold.
| Sylvanite | |
|---|---|
Sylvanite from the Cripple Creek mining district | |
| General | |
| Category | Telluride mineral |
| Formula (repeating unit) | (Ag,Au)Te2 |
| IMA symbol | Syv |
| Strunz classification | 2.EA.05 |
| Crystal system | Monoclinic |
| Crystal class | Prismatic (2/m) (same H-M symbol) |
| Space group | P2/c |
| Identification | |
| Formula mass | 429.89 g/mol |
| Color | Silver-grey, silver-white |
| Crystal habit | Massive to crystalline |
| Cleavage | Perfect on the {010} |
| Fracture | Uneven |
| Tenacity | Brittle |
| Mohs scale hardness | 1.5–2 |
| Luster | Metallic |
| Streak | Steel grey |
| Diaphaneity | Opaque |
| Specific gravity | 8.2 |
| Density | 8.1 |
| Optical properties | Anisotropic |
| Pleochroism | None |
| Ultraviolet fluorescence | None |
| References | |
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.