{{Short description|Telluride mineral}} {{infobox mineral | name = Stützite | category = Telluride mineral | image = Stutzite-Tellurium-169921.jpg | imagesize = | alt = | caption = Stützite from the Moctezuma Mine, Sonora, Mexico (size:3.7 x 3.3 x 1.7 cm) | formula = Ag<sub>5−x</sub>Te<sub>3</sub> <sub>(with x = 0.24 to 0.36)</sub> | IMAsymbol = Stz<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> | molweight = | strunz = 2.BA.30e | dana = | system = Hexagonal | class = Dihexagonal dipyramidal (6/mmm) <br/>H-M symbol: (6/m 2/m 2/m) | symmetry = ''P''6/mmm | unit cell = a = 13.38, c = 8.45&nbsp;[Å]; Z&nbsp;=&nbsp;7 | color = Dark lead-gray | colour = | habit = Massive, compact, granular | twinning = | cleavage = None observed | fracture = Subconchoidal | tenacity = Brittle | mohs = 3.5 | luster = Metallic | streak = | diaphaneity = Opaque | gravity = 8.0 | density = | polish = | opticalprop = | refractive = | birefringence = | pleochroism = | 2V = | dispersion = | extinction = | length fast/slow = | fluorescence = | absorption = | melt = | fusibility = | diagnostic = | solubility = | impurities = | alteration = Tarnishes rapidly to a dark bronze to iridescence | other = Anisotrpism in polished section: Moderate, in gray reddish brown-blue | references = <ref name=HBM>[http://rruff.geo.arizona.edu/doclib/hom/stutzite.pdf Handbook of Mineralogy]</ref><ref name=Mindat>[http://www.mindat.org/min-3813.html Mindat.org]</ref><ref>[http://www.webmineral.com/data/Stutzite.shtml Webmineral data]</ref> }} '''Stützite''' or '''stuetzite''' is a silver telluride mineral with formula: Ag<sub>5−x</sub>Te<sub>3</sub> (with x = 0.24 to 0.36)<ref name=HBM/> or Ag<sub>7</sub>Te<sub>4</sub>.<ref>[http://www.mineralienatlas.de/lexikon/index.php/MineralData?mineral=St%FCtzite Mineral Atlas]</ref>

It was first described in 1951 from a museum specimen from Sacarimb, Romania. It was named for Austrian mineralogist Andreas Xaverius Stütz (1747–1806).<ref name=HBM/><ref name=Mindat/>

It occurs with other sulfide and telluride minerals in hydrothermal ore occurrences. Associated minerals include sylvanite, hessite, altaite, petzite, empressite, native tellurium, native gold, galena, sphalerite, colusite, tennantite and pyrite.<ref name=HBM/>

==References== {{Reflist}}

{{DEFAULTSORT:Stutzite}} Category:Telluride minerals Category:Silver minerals Category:Hexagonal minerals Category:Minerals in space group 191 Category:Minerals described in 1951

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