Zaherite

{{Short description|Sulfate mineral}} {{Infobox mineral | name = Zaherite | boxwidth = | boxbgcolor = | image = Zaherite.jpg | imagesize = 260 | alt = | caption = | struct image = | struct caption = | struct imagesize = | struct2 image = | struct2 caption = | struct2 imagesize= | SMILES = | Jmol = | category = | formula = Al₁₂(OH)₂₆(SO₄)₅·20H₂O | IMAsymbol = Zah<ref>{{Cite journal|last=Warr|first=L.N.|date=2021|title=IMA–CNMNC approved mineral symbols|url=https://www.cambridge.org/core/journals/mineralogical-magazine/article/imacnmnc-approved-mineral-symbols/62311F45ED37831D78603C6E6B25EE0A|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 = Triclinic | class = | symmetry = | unit cell = | color = | colour = | habit = | twinning = | cleavage = | fracture = | tenacity = | toughness = | mohs = 3.5 | luster = Pearly, earthy | streak = | diaphaneity = | gravity = 2.007 | 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= https://www.mindat.org/min-4381.html|work=mindat.org|title= Zaherite|accessdate=2021-12-17}}</ref> | var1 = | var1text = | var2 = | var2text = | var3 = | var3text = | var4 = | var4text = | var5 = | var5text = | var6 = | var6text = }} '''Zaherite''' is a mineral, a complex sulfate of aluminium, formula Al₁₂(OH)₂₆(SO₄)₅·20H₂O. It was discovered in the Salt range, Punjab, Pakistan by M. A. Zaher of the Bangladesh Geological Survey after whom it is named in 1977. This mineral would be extremely soluble in water and unlikely to persist anywhere except in the most arid of environments. It spontaneously, and reversibly dehydrates around room temperature. Its color is white to blue-green.

==See also== *List of minerals *List of minerals named after people

==References== {{reflist}} *[http://webmineral.com/data/Zaherite.shtml Webmineral data]

Category:Aluminium minerals Category:Sulfate minerals Category:Triclinic minerals

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