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Ximengite 
Summary
Ximengite is a phosphate mineral discovered in and named for the Ximeng tin-mining district in China. Chemically, it is bismuth phosphate
| Ximengite | |
|---|---|
| General | |
| Category | Phosphate minerals |
| Formula (repeating unit) | BiPO4 |
| IMA symbol | Xim[1] |
| Strunz classification | 8.AD.45 |
| Crystal system | Trigonal |
| Crystal class | Trapezohedral (32) H-M symbol: (32) |
| Space group | P3121 or P3221 |
| Identification | |
| Formula mass | 303.95 g/mol |
| Color | Colorless |
| Mohs scale hardness | 4.5 |
| Luster | Vitreous - Greasy |
| Diaphaneity | Transparent |
| Specific gravity | 5.53 |
| References | [2][3] |
References edit