wollastonite
/ˈwʊləstənaɪt/noun
mass noun
a white or greyish mineral typically occurring in tabular masses in metamorphosed limestone. It is a silicate of calcium and is used as a source of rock wool.
硅灰石。
词源
early 19th cent.: from the name of W. H.
Wollaston （see
WOLLASTON）+
-ITE1.