boulangerite
Sign in to saveBoulangerite or antimonbleiblende is an uncommon monoclinic orthorhombic sulfosalt mineral, lead antimony sulfide, formula Pb5Sb4S11. It was named in 1837 in honor of French mining engineer Charles Boulanger (1810–1849), and had been a valid species since pre-IMA. It was first described prior to 1959, and is now grandfathered.
Key facts
- Mineral.boxbgcolor
- aaaaaa
- Mineral.name
- Boulangerite
- Mineral.image
- Boulangerite-uri-41a.jpg
- Mineral.caption
- Boulangerite, covering a block of limestone
- Mineral.category
- Sulfosalt minerals
- Mineral.formula
- Pb5Sb4S11
- Mineral.IMAsymbol
- Bou
- Mineral.strunz
- 2.HC.15
- Mineral.system
- Orthorhombic
- Mineral.class
- Dipyramidal (mmm) H-M symbol: (2/m 2/m 2/m)
- Mineral.symmetry
- Pnam
- Mineral.unit cell
- 4,027.99
- Mineral.cleavage
- Good Distinct on {100} Indistinct on {001} and {010}
- Mineral.fracture
- Brittle
- Mineral.tenacity
- Brittle
- Mineral.mohs
- 2.5–3
- Mineral.luster
- Metallic
- Mineral.streak
- Reddish brown to black
via Wikipedia infobox
Wikidata facts
- Image
- Boulangerite-uri-41a.jpg
Show 7 more facts
- chemical formula
- Pb₅Sb₄S₁₁
- Mohs' hardness
- 2.75
- Nickel-Strunz 9th edition (updated 2009)
- 2.HC.15
- Commons category
- Boulangerite
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 2.HC.15
- IMA Mineral Symbol
- Bou
- Strunz 8th edition (series ID, updated)
- II/D.07
Sources (2)
via Wikidata · CC0
~5 min read
Article
4 sectionsContents
- Properties
- Formation
- Identification and usage
- References
{{Infobox mineral |boxbgcolor=#aaaaaa| name = Boulangerite | image = Boulangerite-uri-41a.jpg | caption = Boulangerite, covering a block of limestone | category = Sulfosalt minerals | formula = Pb5Sb4S11 | IMAsymbol=Bou | strunz = 2.HC.15 | system = Orthorhombic | class = Dipyramidal (mmm) H-M symbol: (2/m 2/m 2/m) | symmetry = Pnam | unit cell =4,027.99 | cleavage =Good Distinct on {100} Indistinct on {001} and {010} | fracture =Brittle | tenacity =Brittle | mohs =2.5–3 | luster = Metallic | streak = Reddish brown to black | density =5.9–6.2 | pleochroism =Weak | fluorescence =None | melt =Around 525 °C | fusibility =Around 525 °C | solubility =Completely soluble in hydrochloric acid Partially soluble in nitric acid | impurities =Cu, Zn, Sn, Fe }}
Boulangerite or antimonbleiblende is an uncommon monoclinic orthorhombic sulfosalt mineral, lead antimony sulfide, formula Pb5Sb4S11. It was named in 1837 in honor of French mining engineer Charles Boulanger (1810–1849), and had been a valid species since pre-IMA. It was first described prior to 1959, and is now grandfathered.