# Bakerite

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> Markdown URL: https://mediated.wiki/source/Bakerite.md
> Source: https://en.wikipedia.org/wiki/Bakerite
> Source revision: 1165332420
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{{Short description|Borosilicate mineral}}
{{Infobox mineral
| name        = Bakerite
| boxwidth    = 
| boxbgcolor  = 
| image       = Bakerite.jpg
| imagesize   = 260px
| alt         = 
| caption     = Bakerite sample
| category    = [Nesosilicate](/source/Nesosilicate)
| formula     = Ca<sub>4</sub>B<sub>4</sub>(BO<sub>4</sub>)(SiO<sub>4</sub>)<sub>3</sub>(OH)<sub>3</sub>·H<sub>2</sub>O
| molweight   = 
| strunz      = 9.AJ.20
| system      = [Monoclinic](/source/Monoclinic)
| class       = Prismatic (2/m) <br/><small>(same [H-M symbol](/source/H-M_symbol))</small>
| symmetry    = ''P''2<sub>1</sub>/c
| unit cell   = a = 4.85&nbsp;Å, <br/>b = 7.627&nbsp;Å, <br/>c = 9.659&nbsp;Å; β = 90.255°; Z&nbsp;=&nbsp;1
| color       = Colorless, white
| colour      = 
| habit       = 
| twinning    = 
| cleavage    = 
| fracture    = 
| tenacity    = 
| mohs        = {{frac|4|1|2}}
| luster      = Vitreous, dull
| streak      = 
| diaphaneity = Translucent
| gravity     = 2.88 
| density     = 
| polish      = 
| opticalprop = Biaxial (-)
| refractive  = n<sub>α</sub> = 1.624 n<sub>β</sub> = 1.635 n<sub>γ</sub> = 1.654
| birefringence = δ = 0.030
| pleochroism = 
| 2V          = Measured: 87° to 88°
| dispersion  = 
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| length fast/slow =
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| melt        = 
| fusibility  = 
| diagnostic  = 
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| references  = 
}}

'''Bakerite''' is the common name given to hydrated calcium boro-silicate hydroxide, a [borosilicate](/source/borosilicate) mineral (chemical formula Ca<sub>4</sub>B<sub>4</sub>(BO<sub>4</sub>)(SiO<sub>4</sub>)<sub>3</sub>(OH)<sub>3</sub>·(H<sub>2</sub>O)) that occurs in [volcanic rock](/source/volcanic_rock)s in the [Baker, California](/source/Baker%2C_California) area.<ref>{{cite web|url=http://webmineral.com/data/Bakerite.shtml|title=Bakerite mineral data|accessdate=2009-05-08|work=WebMineral.com| archiveurl= https://web.archive.org/web/20090405145926/http://webmineral.com/data/Bakerite.shtml| archivedate= 5 April 2009 | url-status= live}}</ref> Discredited mineral: IMA2016-A.

It was first described in 1903 for an occurrence in the Corkscrew Canyon Mine of the [Black Mountains](/source/Black_Mountains_(California)), [Furnace Creek](/source/Furnace_Creek%2C_California) District, [Death Valley National Park](/source/Death_Valley_National_Park), [Inyo County, California](/source/Inyo_County%2C_California), US.<ref name=Mindat>[http://www.mindat.org/min-490.html Mindat.org]</ref> It was named for [Richard C. Baker](/source/Richard_C._Baker), a director of the [Pacific Coast Borax Company](/source/Pacific_Coast_Borax_Company).<ref name=HBM>[http://rruff.geo.arizona.edu/doclib/hom/bakerite.pdf Handbook of Mineralogy]</ref><ref>Hildebrand, GH. (1982) Borax Pioneer: Francis Marion Smith. San Diego: Howell-North Books. p. 89. ({{ISBN|0-8310-7148-6}})</ref>

==References==
{{reflist}}

Category:Borate minerals
Category:Nesosilicates
Category:Monoclinic minerals
Category:Minerals in space group 14
Category:Borosilicates

{{silicate-mineral-stub}}

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