Raspite
Raspite is a mineral, a lead tungstate; with the formula PbWO4. It forms yellow to yellowish brown monoclinic crystals.[1] It is the low temperature monoclinic dimorph of the tetragonal stolzite.[1][2]
| Raspite | |
|---|---|
 | |
| General | |
| Category | Oxide minerals |
| Formula (repeating unit) | PbWO4 |
| Strunz classification | 4.DG.20 |
| Crystal system | Monoclinic |
| Crystal class | Prismatic (2/m) (same H-M symbol) |
| Space group | P21/b |
| Identification | |
| Colour | Light yellow, yellowish brown, grey |
| Crystal habit | Tabular (may have striations), elongate |
| Cleavage | Perfect {100} |
| Mohs scale hardness | 2.5-3 |
| Luster | Adamantine |
| Solubility | Decomposes in HCl |
It was discovered in 1897 at Broken Hill, New South Wales, Australia, it was named for Charles Rasp (1846–1907), German-Australian prospector, discoverer of the Broken Hill ore deposit.[3]
References
- Handbook of Mineralogy
- Mindat entry
- "Raspite Mineral Data", Webmineral.com, retrieved September 12, 2010
Bibliography
- Palache, P.; Berman H.; Frondel, C. (1960). "Dana's System of Mineralogy, Volume II: Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. (Seventh Edition)" John Wiley and Sons, Inc., New York, pp. 1089-1090.
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