# Fontarnauite

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> Markdown URL: https://mediated.wiki/source/Fontarnauite.md
> Source: https://en.wikipedia.org/wiki/Fontarnauite
> Source revision: 1220348540
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{{Infobox mineral
| name        = Fontarnauite
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| image       = Fontarnauita.jpg
| imagesize   = 260
| alt         = 
| caption     = Fontarnauite, Anatolia, West Turkey
| category    = [Borate mineral](/source/Borate_mineral)s
| formula     = {{chem2|(Na,K)2(Sr,Ca)(SO4)[B5O8(OH)]*2H2O}}
| IMAsymbol   = Fon<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      = 6.DA.60
| system      = [Monoclinic](/source/Monoclinic)
| class       = Prismatic (2/m) <br/><small>(same [H-M symbol](/source/H-M_symbol))</small>
| symmetry    = ''P2''<sub>1</sub>/c
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| color       = Light brown
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| cleavage    = Perfect {010}
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| mohs        = 2.5 - 3
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| references  = <ref name=mindat/><ref name=atlas>[https://www.mineralienatlas.de/lexikon/index.php/MineralData?mineral=Fontarnauite Mineralienatlas]</ref>
}}

'''Fontarnauite''' is a relatively recently described, rare [sulfate](/source/Sulfate_mineral), [borate](/source/Borate_mineral) [mineral](/source/mineral) with the chemical formula {{chem2|(Na,K)2(Sr,Ca)(SO4)[B5O8(OH)]*2H2O}}. It is found in an [evaporite](/source/evaporite) boron deposit. It coexists with other evaporite boron minerals, especially probertite. It is [monoclinic](/source/monoclinic), crystallizing in the space group ''P''2<sub>1</sub>/''c''.<ref>García-Veigas, J., Rosell, L., Alcobé, X., Subias, I., Ortí, F., Gündoğan, İ., and Helvaci, C., 2010. Fontarnauite, a New Sulphate-Borate Mineral from the Emet Borate District (Turkey). Revista de la Sociedad Española de Mineralogía 13, 97-98</ref><ref name=mindat>[http://www.mindat.org/min-40279.html Mindat]</ref>

It was named for Ramon Fontarnau i Griera, a materials scientist of the [University of Barcelona](/source/University_of_Barcelona).<ref name=mindat />

==References==
{{reflist}}

Category:Borate minerals
Category:Sulfate minerals
Category:Sodium minerals
Category:Strontium minerals
Category:Monoclinic minerals
Category:Borate sulfates
Category:Minerals in space group 14

{{mineral-stub}}

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Adapted from the Wikipedia article [Fontarnauite](https://en.wikipedia.org/wiki/Fontarnauite) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Fontarnauite?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.