Editing Bismuthinite

{{Short description|Bismuth (III) sulfide mineral}}
{{Infobox mineral
| name        = Bismuthinite
| category    = [[Sulfide mineral]]
| boxwidth    = 
| boxbgcolor  = 
| image       = Bismuthinite.jpg
| imagesize   = 260px
| caption     = Bismuthinite – Schlaggenwald (Horni Slavkov) – Bohemia – Czech Republic (XX 1.1 cm)
| IMAsymbol   = Bin<ref>{{Cite journal|last=Warr|first=L.N.|date=2021|title=IMA–CNMNC approved mineral symbols|journal=Mineralogical Magazine|volume=85|issue=3|pages=291–320|doi=10.1180/mgm.2021.43|bibcode=2021MinM...85..291W|s2cid=235729616|doi-access=free}}</ref>
| formula     = Bi<sub>2</sub>S<sub>3</sub>
| strunz      = 2.DB.05a
| system      = [[Orthorhombic]] 
| class       = Dipyramidal (mmm) <br/>[[H-M symbol]]: (2/m 2/m 2/m)
| symmetry    = ''Pbnm''
| color       = Lead-gray to tin-white, with a yellowish or iridescent tarnish.
| habit       = Slender prismatic to acicular, massive lamellar
| twinning    = 
| cleavage    = [010] Perfect
| fracture    = Uneven
| tenacity    = Brittle, sectile
| mohs        = 2
| luster      = Metallic
| refractive  = 
| opticalprop = Opaque
| streak      = Lead grey
| gravity     = 6.8–7.2
| density     = 
| melt        = 
| fusibility  = 
| diagnostic  = 
| solubility  = 
| diaphaneity = 
| other       = 
| references  = <ref name=Handbook>{{cite web |last1=Anthony |first1=John W. |last2=Bideaux |first2=Richard A. |last3=Bladh |first3=Kenneth W. |last4=Nichols |first4=Monte C. |title=Bismuthinite |url=http://www.handbookofmineralogy.org/pdfs/bismuthinite.pdf |website=Handbook of Mineralogy |publisher=Mineral Data Publishing |access-date=14 March 2022 |date=2005}}</ref><ref name=webmineral>{{WebMineral|url=http://webmineral.com/data/Bismuthinite.shtml|title=Bismuthinite Mineral Data|accessdate=26 May 2022}}</ref><ref name=Mindat>{{mindat|id=686|title=Bismuthinite|accessdate=26 May 2022}}</ref>
}}

'''Bismuthinite''' is a mineral consisting of [[bismuth(III) sulfide|bismuth sulfide]] ([[bismuth|Bi]]<sub>2</sub>[[sulfur|S]]<sub>3</sub>).  It is an important ore for bismuth.  The crystals are steel-grey to off-white with a metallic luster. It is soft enough to be scratched with a fingernail and rather dense.

Bismuthinite forms a series with the lead, copper, bismuth mineral [[aikinite]] ([[lead|Pb]][[copper|Cu]][[bismuth|Bi]][[sulfur|S]]<sub>3</sub>).<ref name=Mindat/>

[[File:Bismuthinite-136224.jpg|thumb|left|Bismuthinite crystal group from Bolivia (size: 2.9 × 1.9 × 1.5 cm)]]
[[File:Maldonit, Bismut, Bismuthinit, Pyrit, Au-Ag.png|thumb|left|This microprobe scan of a quartz-rich gold ore from the Ädelfors Goldmine shows the orientation of bismuthinite and various other phases, mostly maldonite, along trails, probably former cracks]]
It occurs in [[hydrothermal]] [[Vein (geology)|veins]] with [[tourmaline]]-bearing copper veins associated with [[granite]], in some high temperature [[gold]] veins, and in recent [[volcanic]] exhalation deposits. Associated minerals include native bismuth, aikinite, [[arsenopyrite]], [[stannite]], [[galena]], [[pyrite]], [[chalcopyrite]], tourmaline, [[wolframite]], [[cassiterite]] and [[quartz]].<ref name=Handbook/>

It was first reported in 1832 from the mines of [[Potosí]], [[Bolivia]].<ref name=webmineral/>
{{clear}}
==References==
<references/>

== Further reading ==

{{EB1911 poster|Bismuthite}}

[[Category:Bismuth minerals]]
[[Category:Sulfide minerals]]
[[Category:Orthorhombic minerals]]
[[Category:Minerals in space group 62]]
[[Category:Glances]]

{{sulfide-mineral-stub}}