# Soddyite

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> Markdown URL: https://mediated.wiki/source/Soddyite.md
> Source: https://en.wikipedia.org/wiki/Soddyite
> Source revision: 1338509265
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{{Short description|Mineral of uranium}}
{{Infobox mineral
| name        = Soddyite
| boxbgcolor  =#f5d833 
| image       = Soddyite-201039.jpg
| caption     = A piece of rock from [Swambo](/source/Swambo) in the [Democratic Republic of Congo](/source/Democratic_Republic_of_Congo) containing yellow crystals of soddyite
| category    = Nesosilicates
| formula     = (UO<sub>2</sub>)<sub>2</sub>SiO<sub>4</sub>·2H<sub>2</sub>O
| IMAsymbol   = Sod<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|url-access=subscription}}</ref>
| strunz      = 9.AK.05
| system      = [Orthorhombic](/source/Orthorhombic)
|dana=53.03.03.01| class       = Dipyramidal (mmm) <br/>[H-M symbol](/source/H-M_symbol): (2/m 2/m 2/m)
| symmetry    = ''F ddd''
|unit cell=1,745.03 ų| color       =Canary yellow to amber yellow 
|cleavage=Perfect on {001}, good on {111}| mohs        =3 - 4 
| luster      =Vitreous, greasy, dull 
|density=4.627| diaphaneity =Transparent, translucent, opaque 
| opticalprop =Biaxial (-) 
| refractive  =n<sub>α</sub> = 1.650 - 1.654, n<sub>β</sub> = 1.685, n<sub>γ</sub> = 1.699 - 1.715 
| birefringence =0.049 - 0.061 
| dispersion  =Relatively weak 
|fluorescence=Weak orange yellow|streak=Yellow| other       = 25px [Radioactive](/source/Radioactive)
}}

'''Soddyite''' is a mineral of [uranium](/source/uranium). It has yellow crystals and usually mixed with [curite](/source/curite) in [oxidized](/source/Redox) uranium ores. It is named after the British radiochemist and physicist [Frederick Soddy](/source/Frederick_Soddy) (1877–1956). Soddyite has been a valid species since 1922, following its discovery in the locality of the [Shinkolobwe uranium mine](/source/Shinkolobwe) in the [Haut-Katanga Province](/source/Haut-Katanga_Province) of the [Democratic Republic of the Congo](/source/Democratic_Republic_of_the_Congo) (DRC).<ref>[http://webmineral.com/data/Soddyite.shtml Webmineral data for soddyite]</ref><ref name=mindat>[http://www.mindat.org/min-3702.html Mindat information page for Soddyite]</ref><ref> [http://rruff.geo.arizona.edu/doclib/hom/soddyite.pdf Handbook of Mineralogy]</ref>

==References==
{{reflist}}

Category:Uranium(VI) minerals
Category:Nesosilicates
Category:Orthorhombic minerals
Category:Minerals in space group 70

{{silicate-mineral-stub}}

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