Lanarkite

{{Short description|Lead sulfate mineral}} {{Infobox mineral | name = Lanarkite | boxwidth = | boxbgcolor = | image = Lanarkite-sea28d.jpg | imagesize = 260px | alt = | caption = | category = Sulfate minerals | formula = Pb2(SO4)O | IMAsymbol = Lan<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.BD.40 | dana = | system = Monoclinic | class = Prismatic (2/m) (same H-M symbol) | symmetry = ''C2/m'' | unit cell = | color = | colour = | habit = | twinning = | cleavage = | fracture = | tenacity = | mohs = | luster = | streak = | diaphaneity = | gravity = | density = | polish = | opticalprop = | refractive = | birefringence = | pleochroism = | 2V = | dispersion = | extinction = | length fast/slow = | fluorescence = | absorption = | melt = | fusibility = | diagnostic = | solubility = | impurities = | alteration = | other = | prop1 = | prop1text = | references = }}

'''Lanarkite''' is a mineral, a form of lead sulfate with formula Pb2(SO4)O. It was originally found at Leadhills in the Scottish county of Lanarkshire, hence the name. It forms white or light green, acicular monoclinic prismatic crystals, usually microscopic in size. It is an oxidation product of galena.

In 2023, Lanarkite was used by Korean physicists in an attempt to make LK-99, a material evaluated for room-temperature superconductivity.<ref>Bob Yirka, [https://phys.org/news/2023-07-korean-team-room-temperature-ambient-pressure-superconductor.html Korean team claims to have created the first room-temperature, ambient-pressure superconductor, Phys Org, 27 July 2023]</ref>

==References== {{Reflist}} *[http://webmineral.com/data/Lanarkite.shtml Webmineral] *[http://www.mindat.org/min-2316.html Mindat]

Category:Lead minerals Category:Sulfate minerals Category:Monoclinic minerals Category:Minerals in space group 12