{{Infobox mineral | name = Qingsongite | category = Native element minerals: nitrides | image = Sphalerite-unit-cell-depth-fade-3D-balls.png | imagesize = | caption = Crystal structure | formula = BN | IMAsymbol = Qsg<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 = | system = Cubic | class = Hextetrahedral ({{overline|4}}3m) <br/>H-M symbol: ({{overline|4}}3m) | symmetry = ''F''{{overline|4}}3m | unit cell = a = 3.61 Å; Z = 4 | color =White | habit = Inclusions in chromium-rich rocks | twinning = | cleavage =Good {011} | fracture = | mohs =9 - 10 | luster =Adamantine | refractive = | opticalprop = | birefringence = | fluorescence= | pleochroism = | streak =White | gravity = | melt = | fusibility = | diagnostic = | solubility = | diaphaneity = | other = Not radioactive, non-magnetic | references = <ref name=mindat>[http://www.mindat.org/min-43792.html Qingsongite] on Mindat.org</ref> <ref name=mineralienatlas>[https://www.mineralienatlas.de/lexikon/index.php/MineralData?mineral=Qingsongite Qingsongite] on ''Mineralienatlas''</ref> }} '''Qingsongite''' {{IPAc-en|ˈ|tʃ|ɪ|ŋ|s|ɒ|ŋ|aɪ|t}} is a rare boron nitride mineral with cubic crystalline form. It was first described in 2009 for an occurrence as minute inclusions within chromite deposits in the Luobusa ophiolite in the Shannan Prefecture, Tibet Autonomous Region, China.<ref name=mindat/> It was recognized as a mineral in August 2013 by the International Mineralogical Association. It is named after Chinese geologist Qingsong Fang (1939–2010).<ref name=mindat/> Qingsongite is the only known boron mineral that is formed deep in the Earth's mantle.<ref>[http://www.sci-news.com/geology/science-qingsongite-new-mineral-01286.html Qingsongite: New Mineral from Tibet Hard as Diamond]. sciencenews.org. August 5, 2013</ref> Associated minerals or phases include osbornite (titanium nitride), coesite, kyanite and amorphous carbon.<ref>{{Cite web |url=http://ucrtoday.ucr.edu/16729 |title=Pittalwala, Iqbal, ''International Research Team Discovers New Mineral,'' UCR Today, Aug. 2, 2013 |access-date=2014-03-24 |archive-url=https://web.archive.org/web/20130806102920/http://ucrtoday.ucr.edu/16729 |archive-date=2013-08-06 |url-status=dead }}</ref>
==References== {{reflist}}
Category:Native element minerals Category:Cubic minerals Category:Minerals in space group 216