# Berryite

> Mediated Wiki article. Canonical URL: https://mediated.wiki/source/Berryite
> Markdown URL: https://mediated.wiki/source/Berryite.md
> Source: https://en.wikipedia.org/wiki/Berryite
> Source revision: 1340787314
> License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/)

{{Short description|Sulfosalt mineral}}
{{Infobox mineral
| name              = Berryite
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| image             = Berryite.jpg
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| caption           = Black acicular crystals of the rare Pb-Ag sulfide from a Colorado locality: Mike Mine, [San Juan County, Colorado](/source/San_Juan_County%2C_Colorado), United States
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| formula           = {{chem2|Cu3Ag2Pb3Bi7S16}}
| IMAsymbol=Bry<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            = 2.HB.20d (10th)
| dana              = 3.6.15.1
| system            = Monoclinic
| class             = 2/m (Prismatic)
| symmetry          = 
| unit cell         = 1,445.93 Å<sup>3</sup>
| colour            = Bluish-grey, white, grey-white
| habit             = 
| twinning          = Repeated
| cleavage          = Poor/indistinct
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| tenacity          = 
<!-- | toughness         = 131–152 kg/mm<sup>2</sup> (Vickers) -->
| mohs              = 3.5
| luster            = Metallic
| streak            = 
| diaphaneity       = Opaque
| gravity           = 6.7
| density           = 6.7 g/cm<sup>3</sup> (measured)
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| pleochroism       = Weak
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}}
'''Berryite''' is a mineral with the formula {{Chem2|Pb3(Ag,Cu)5Bi7S16}}. It occurs as gray to blue-gray [monoclinic](/source/monoclinic) prisms. It is opaque and has a metallic [luster](/source/Lustre_(mineralogy)). It has a [Mohs hardness](/source/Mohs_hardness) of 3.5 and a [specific gravity](/source/specific_gravity) of 6.7.

It was first identified in 1965 using [X-ray diffraction](/source/X-ray_diffraction) by [mineralogist](/source/mineralogist) [Leonard G. Berry](/source/Leonard_G._Berry) (1914–1982). It is found in [Park](/source/Park_County%2C_Colorado) and [San Juan](/source/San_Juan_County%2C_Colorado) counties in [Colorado](/source/Colorado). It occurs in [sulfide](/source/Sulfide_mineral) bearing [quartz](/source/quartz) veins in Colorado and with [siderite](/source/siderite)-rich [cryolite](/source/cryolite) in [Ivigtut, Greenland](/source/Ivigtut%2C_Greenland).

== References ==
{{Reflist}}
*[http://webmineral.com/data/Berryite.shtml Webmineral data]
*[http://www.mindat.org/min-638.html Mindat with location data]
*[http://rruff.geo.arizona.edu/doclib/hom/berryite.pdf Mineral Data Publishing - PDF]

Category:Lead minerals
Category:Silver minerals
Category:Copper(I) minerals
Category:Bismuth minerals
Category:Sulfosalt minerals
Category:Monoclinic minerals
Category:Minerals in space group 11

{{sulfide-mineral-stub}}

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