Boulangerite
| Boulangerite | |
|---|---|
| 
 
 Boulangerite, covering a block of limestone  | |
| General | |
| Category | Sulfosalt minerals | 
| Formula  (repeating unit)  | Pb5Sb4S11 | 
| Strunz classification | 02.HC.15 | 
| Identification | |
| Crystal system | Monoclinic | 
| Luster | Metallic | 
| Streak | Black | 
| References | [1] | 
Boulangerite is a sulfosalt mineral, lead antimony sulfide, formula Pb5Sb4S11. It was named in 1837 in honor of French mining engineer Charles Boulanger (1810–1849). It forms metallic grey monoclinic crystals.[2][3] Sometimes the crystals form a fine feathery mass which has been called plumosite. Boulangerite is used as a lead ore.[1]
References
| Wikimedia Commons has media related to Boulangerite. | 
- 1 2 Harlow, George, Joseph Peters, and Martin Prinz. "Sulfides." Simon & Schuster's Guide to Rocks and Minerals. New York: Simon & Schuster, 1977. Entry 44. Print.
 - ↑ http://webmineral.com/data/Boulangerite.shtml Webmineral data
 - ↑ http://www.mindat.org/min-738.html Mindat
 
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