Kalsilite

{{short description|Vitreous white to grey feldspathoidal mineral}} {{Infobox mineral | name = Kalsilite | boxwidth = | boxbgcolor = | image = Kalsilite.jpg | imagesize = | alt = | caption = | struct image = | struct caption = | struct imagesize = | struct2 image = | struct2 caption = | struct2 imagesize= | SMILES = | Jmol = | category = Tectosilicate minerals | group = Feldspathoid group | formula = KAlSiO₄ | IMAsymbol = Kls<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 = | dana = | system = Hexagonal | class = 6 2 2 – Trapezohedral | symmetry = ''P6₃22'' (no. 182) | unit cell = | color = Colorless, white, gray | colour = | habit = | twinning = | cleavage = | fracture = | tenacity = Brittle | toughness = | mohs = 6 | luster = Vitreous, greasy | streak = White | diaphaneity = Transparent, Translucent | gravity = 2.59–2.62 | density = | polish = | opticalprop = | refractive = | birefringence = | pleochroism = | 2V = | dispersion = | extinction = | length fast/slow = | fluorescence = | absorption = | melt = | Curie temp = | fusibility = | diagnostic = | solubility = | impurities = | alteration = | other = | prop1 = | prop1text = | references = <ref name=Mindat>{{cite web|url= http://www.mindat.org/min-2142.html|work=mindat.org|title= Kalsilite|accessdate=2021-12-17}}</ref> | var1 = | var1text = | var2 = | var2text = | var3 = | var3text = | var4 = | var4text = | var5 = | var5text = | var6 = | var6text = }} '''Kalsilite''' (KAlSiO₄) is a vitreous white to grey feldspathoidal mineral that is found in some potassium-rich lavas, such as from Chamengo Crater in Uganda. It has a relative hardness of 5.5.

== References == {{reflist}} * [http://www.webmineral.com/data/Kalsilite.shtml Webmineral.com] * [http://www.handbookofmineralogy.com/pdfs/kalsilite.pdf Handbook of Mineralogy] {{Webarchive|url=https://web.archive.org/web/20190508113943/http://www.handbookofmineralogy.com/pdfs/kalsilite.pdf |date=2019-05-08 }}

Category:Potassium minerals Category:Aluminium minerals Category:Feldspathoid group Category:Hexagonal minerals Category:Minerals in space group 182 Category:Minerals described in 1942

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