# Veatchite

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> Markdown URL: https://mediated.wiki/source/Veatchite.md
> Source: https://en.wikipedia.org/wiki/Veatchite
> Source revision: 1140728466
> License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/)

{{Infobox mineral
| name        = Veatchite
| boxwidth    = 
| image       = Veatchite.jpg
| imagesize   = 260px
| alt         = 
| caption     = '''Veatchite-p''', Billie Mine, [Death Valley](/source/Death_Valley), [California](/source/California) 
| category    = [Phylloborates](/source/Phylloborates)
| formula     = Sr<sub>2</sub>B<sub>11</sub>O<sub>16</sub>(OH)<sub>5</sub> · H<sub>2</sub>O
| IMAsymbol   = Vea<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>
| strunz      = 6.EC.15
| dana        = 
| system      = [Monoclinic](/source/Monoclinic)
| class       = Domatic (m) <br/><small>(same [H-M symbol](/source/H-M_symbol))</small>
| symmetry    = ''Aa''
| unit cell   = a = 20.81&nbsp;[Å](/source/%C3%85ngstr%C3%B6m), b = 11.74&nbsp;Å <br/>c = 6.63&nbsp;Å; β = 92.03°; Z&nbsp;=&nbsp;8
| color       = Colorless to white
| habit       = Flattened platey to prismatic crystals, diverging fibrous clusters and cross fiber veinlets
| twinning    = 
| cleavage    = Perfect on {010}, indistinct on {001}
| fracture    = 
| tenacity    = 
| mohs        = 2
| luster      = Vitreous to pearly
| streak      = 
| diaphaneity = Transparent to translucent
| gravity     = 2.62
| density     = 
| polish      = 
| opticalprop = Biaxial (+)
| refractive  = n<sub>α</sub> = 1.551 n<sub>β</sub> = 1.553 n<sub>γ</sub> = 1.620
| birefringence = δ = 0.069
| pleochroism = 
| 2V          = Measured: 37°
| dispersion  = 
| extinction  = 
| length fast/slow =
| fluorescence = 
| absorption  = 
| melt        = 
| fusibility  = 
| diagnostic  = 
| solubility  = 
| impurities  = 
| alteration  = 
| other       = 
| references  = <ref name=Mindat>[http://www.mindat.org/min-4166.html Veatchite on Mindat.org]</ref><ref name=Webmin>[http://www.webmineral.com/data/Veatchite.shtml Veatchite data on Webmineral]</ref><ref name=HBM>[http://rruff.info/doclib/hom/veatchite.pdf Veatchite in the Handbook of Mineralogy]</ref>
}}

'''Veatchite''' is an unusual [strontium](/source/strontium) [borate](/source/borate), with the chemical formula Sr<sub>2</sub>B<sub>11</sub>O<sub>16</sub>(OH)<sub>5</sub>·H<sub>2</sub>O. There are two known [polytype](/source/polytype)s, veatchite-A and veatchite-p.<ref>Grice J D, Pring A (2012) Veatchite: structural relationships of the three polytypes, American Mineralogist 97, 489-495</ref>

Veatchite was discovered in 1938, at the Sterling Borax mine in Tick Canyon, [Los Angeles County](/source/Los_Angeles_County), [California](/source/California). Veatchite is named to honor [John Veatch](/source/John_Veatch), the first person to detect [boron](/source/boron) in the mineral waters of California.

==See also==
{{Portal|Earth sciences}}
* [List of minerals](/source/List_of_minerals)

==References==
{{Reflist}}

==External links==
{{Commons category-inline}}

Category:Strontium minerals
Category:Phylloborates
Category:Monoclinic minerals
Category:Minerals in space group 9

{{mineral-stub}}

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