{{Short description|Sulfide mineral}} {{Infobox mineral | name = Stannoidite | category = Sulfide mineral | boxwidth = | boxbgcolor = | image = Stannoidite.jpg | imagesize = | caption = Silvery stannoidite crystals from the Akenobe Mine, Yabu City, Honshu Island, Japan, associated with chalcopyrite | formula = Cu<sub>6</sub><sup>+</sup>Cu<sub>2</sub><sup>2+</sup>(Fe<sup>2+</sup>,Zn)<sub>3</sub>Sn<sub>2</sub>S<sub>12</sub> | IMAsymbol = Sta<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> | unit cell = a = 10.76&nbsp;Å, b = 5.4&nbsp;Å <br/>c = 16.09&nbsp;Å, Z&nbsp;=&nbsp;2 | molweight = | strunz = 2.CB.15c | system = Orthorhombic | class = Disphenoidal (222) <br/>H-M symbol: (2 2 2) | symmetry = ''I222'' (No.&nbsp;23) | color = Brass brown | habit = Uniformly indistinguishable crystals forming large masses | twinning = | cleavage = None | fracture = Conchoidal – uneven | tenacity = | mohs = 4 | luster = Metallic | refractive = | opticalprop = | pleochroism = | streak = Brown gray | gravity = 4.29 | density = | melt = | fusibility = | diagnostic = | solubility = | diaphaneity = Opaque | other = | references = <ref name=webmin>[http://webmineral.com/data/Stannoidite.shtml Stannoidite]. Webmineral</ref><ref name=mindat>[http://www.mindat.org/min-3748.html Stannoidite]. Mindat.org</ref><ref>{{cite journal|author=Kudoh Y., Takeuchi Y. | title=The superstructure of stannoidite| journal=Zeitschrift für Kristallographie – Crystalline Materials| volume=144| issue=1–6| pages=145–160| doi=10.1524/zkri.1976.144.16.145| bibcode=1976ZK....144..145K| year=1976| s2cid=201808201}}</ref>

}} '''Stannoidite''' is a sulfide mineral composed of five chemical elements: copper, iron, zinc, tin and sulfur. Its name originates from Latin ''stannum'' (tin) and Greek ''eides'' (or Latin ''oïda'' meaning "like"). The mineral is found in hydrothermal Cu-Sn deposits.<ref name=webmin/><ref name=mindat/>

Stannoidite was first described in 1969 for an occurrence in the Konjo mine, Okayama prefecture, Honshu Island, Japan.<ref name=mindat/>

==See also== * Stannite * Kesterite

==References== {{Commons category|Stannoidite}} {{reflist}}

Category:Sulfide minerals Category:Orthorhombic minerals Category:Minerals in space group 23

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