Wattersite

{{Infobox mineral | name = Wattersite | boxwidth = | boxbgcolor = | image = Wattersite-edgarbaileyite-662509.jpg | imagesize = | alt = | caption = Black crystals of wattersite with yellowish zones of edgarbaileyite. Locality: Clear Creek claim (Clear Creek Mine), Picacho Peak, New Idria District, Diablo Range, San Benito Co., California, USA. Dimensions: 6.6 cm x 4.8 cm x 4.1 cm | category = Chromate mineral | formula = Hg⁺¹₄Hg⁺²Cr⁺⁶O₆ | IMAsymbol = Wte<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 = 7.FB.15 | dana = 35.4.2.1 | system = Monoclinic | class = 2/m | symmetry = ''C2/c'' (number 15) | unit cell = 859.81 ų | color = Dark red-brown to black | colour = | habit = Prismatic, aggregates, massive | twinning = [001], contact twins on {100} | cleavage = None | fracture = Conchoidal | tenacity = Brittle | toughness = | mohs = 4.5 | luster = Sub-Metallic | streak = Brick red | diaphaneity = Opaque | gravity = 8.91 | density = | polish = | opticalprop = Biaxial | refractive = n_α = 2.440 - 2.520 n_γ = 2.700 - 2.860 | birefringence = δ = 0.260 - 0.340 | pleochroism = Visible | 2V = | dispersion = r > v strong | extinction = | length fast/slow = | fluorescence = | absorption = | melt = | Curie temp = | fusibility = | diagnostic = | solubility = | impurities = | alteration = | other = | prop1 = | prop1text = | references = <ref name=Mindat/><ref name=HBM/><ref>{{cite journal |last1=Groat |first1=L.A. |last2=Roberts |first2=A.C. |last3=Le Page |first3=Y. |journal=The Canadian Mineralogist |volume=33 |year=1995 |pages=41–46 |title=The crystal structure of wattersite, Hg4HgCrO6}}</ref> }} '''Wattersite''' is a rare mercury chromate mineral with the formula Hg⁺¹₄Hg⁺²Cr⁺⁶O₆.<ref name=Mindat>{{cite web|title=Wattersite|url=https://www.mindat.org/min-4248.html|website=MinDat|accessdate=29 April 2017}}</ref> It occurs in association with native mercury and cinnabar in a hydrothermally altered serpentinite.<ref name=HBM>{{Cite web |url=http://www.handbookofmineralogy.com/pdfs/wattersite.pdf |title=Handbook of Mineralogy |access-date=2017-04-29 |archive-date=2016-03-03 |archive-url=https://web.archive.org/web/20160303185449/http://www.handbookofmineralogy.com/pdfs/wattersite.pdf |url-status=dead }}</ref> It was first described from Clear Creek claim, San Benito County, California, USA in 1961.<ref>{{cite journal|last1=Roberts|first1=Andrew C.|last2=Bonardi|first2=Maurizio|last3=Erd|first3=Richard C.|last4=Criddle|first4=Alan J.|last5=Le Page|first5=Yvon|title=Wattersite Hg+14Hg+2Cr+6O6 a new mineral from the Clear Creek claim San Benito Country, California|journal=The Mineralogical Record|date=1991|volume=22|pages=269–272}}</ref> It was named to honor Californian mineral collector Lucius "Lu" Watters.<ref name=HBM/>

==References== {{reflist}}

Category:Oxide minerals Category:Mercury minerals Category:Chromium minerals Category:Monoclinic minerals Category:Minerals in space group 15