出典:Wiktionary
出典:『Wiktionary』 (2025/03/13 21:35 UTC 版)
wassonite (uncountable)
出典:Wikipedia
出典:『Wikipedia』 (2011/06/27 12:27 UTC 版)
Wassonite is an extremely rare sulfide mineral with chemical formula TiS. 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. This grain represents the first observation in nature of the synthetic compound titanium(II) sulfide.