{{Short description|Sulfate mineral}} {{Infobox mineral | name = Uklonskovite | boxwidth = | boxbgcolor = | image = | imagesize = | alt = | caption = | category = Sulfate minerals | formula = NaMgSO<sub>4</sub>(OH)·2H<sub>2</sub>O | IMAsymbol = Ukl<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 = 7.DF.05 | system = Monoclinic | class = Prismatic (2/m) <br/><small>(same H-M symbol)</small> | symmetry = ''P''2<sub>1</sub>/m | unit cell = a = 7.2&nbsp;Å, b = 7.21&nbsp;Å <br/>c = 5.73&nbsp;Å; β = 113.23°; Z&nbsp;=&nbsp;2 | color = colorless | colour = | habit = | twinning = | cleavage = | fracture = | tenacity = | mohs = | luster = vitreous | streak = | diaphaneity = transparent | gravity = | density = | polish = | opticalprop = | refractive = | birefringence = | pleochroism = | 2V = | dispersion = | extinction = | length fast/slow = | fluorescence = | absorption = | melt = | fusibility = | diagnostic = | solubility = | impurities = | alteration = | other = | prop1 = | prop1text = | references = <ref name=Mindat>[http://www.mindat.org/min-4084.html Mindat]</ref> }} '''Uklonskovite''' (Na Mg(S O<sub>4</sub>)F) is a colorless monoclinic mineral found in Chile, Italy and Uzbekistan. It is named after Alexandr Sergeievich Uklonskii (b. 1888), mineralogist, Academy of Sciences, Uzbekistan. Its type locality is Kushkanatau salt deposit, Lower Amu Darya River, Karakalpakstan Respublikasi, Uzbekistan.<ref name=Mindat/><ref>[http://www.webmineral.com/data/Uklonskovite.shtml Webmineral.com - Uklonskovite]</ref><ref>{{Cite web |url=http://www.handbookofmineralogy.com/pdfs/uklonskovite.pdf |title=Handbook of Mineralogy - Uklonskovite |access-date=2013-01-25 |archive-date=2016-03-04 |archive-url=https://web.archive.org/web/20160304000446/http://www.handbookofmineralogy.com/pdfs/uklonskovite.pdf |url-status=dead }}</ref>

== References == {{Reflist}}

Category:Sulfate minerals Category:Monoclinic minerals Category:Minerals in space group 11

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