{{infobox mineral | name = Wassonite | category = Sulfide mineral | formula = TiS | IMAsymbol = Was<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 = | system = Trigonal | class = Hexagonal scalenohedral ({{Overline|3}}m) <br />H-M symbol: ({{Overline|3}} 2/m) | symmetry = ''R''{{Overline|3}}m | unit cell = | color = | colour = | habit = | twinning = | cleavage = | fracture = | tenacity = | mohs = | luster = | streak = | diaphaneity = | gravity = | density = | polish = | opticalprop = | refractive = | birefringence = | pleochroism = | 2V = | dispersion = | references = <ref name=Mindat>[http://www.mindat.org/min-40551.html Mindat.org]</ref><ref>[https://www.mineralienatlas.de/lexikon/index.php/MineralData?mineral=Wassonite Mineralienatlas]</ref> }} '''Wassonite''' is a scarce titanium sulfide mineral with the chemical formula TiS.<ref name=Mindat/><ref name="NASA">{{cite web|title=Scientists Find New Type Of Mineral In Historic Meteorite|url=http://www.nasa.gov/home/hqnews/2011/apr/HQ_11-098_New_Mineral.html|publisher=NASA|accessdate=2011-04-07|author1=Dwayne C. Brown|author2=William Jeffs|date=2011-04-05|archive-date=2013-05-12|archive-url=https://web.archive.org/web/20130512084925/http://www.nasa.gov/home/hqnews/2011/apr/HQ_11-098_New_Mineral.html|url-status=dead}}</ref> Its discovery was announced in a 2011 NASA press release as a single small grain within an enstatite chondrite meteorite called "Yamato 691", which was found during a 1969 Japanese expedition to Antarctica.<ref>{{cite web|last=Bryner|first=Jeanna|title=4.5-Billion-Year-Old Antarctic Meteorite Yields New Mineral|url=http://www.livescience.com/13581-antarctic-meteorite-mineral-wassonite.html|publisher=LiveScience|accessdate=2011-04-07|date=2011-04-06}}</ref> This grain represents the first observation in nature of the synthetic compound titanium(II) sulfide.
The mineral was named after John T. Wasson, a professor at the University of California, Los Angeles and was approved by the International Mineralogical Association.<ref>{{cite web |title=Scientists Find New Type of Mineral in Historic Meteorite |url=https://www.sciencedaily.com/releases/2011/04/110405151612.htm |publisher=Science Daily |accessdate=2011-04-07 |date=2011-04-05 }}</ref><ref>{{Cite journal |author=Nakamura-Messenger, K., Clemett, S.J., Rubin, A., Choi, B.-G., Keller, L.P., Zhang, S., Rahman, Z. and Oikawa, K. |title=Wassonite, IMA 2010-074 |journal=CNMNC Newsletter |issue=8 |date=April 2011 |page=293}}</ref>
== References == {{reflist}}
Category:Sulfide minerals Category:Titanium minerals Category:Trigonal minerals Category:Minerals in space group 166 Category:Minerals described in 2012
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