Definify.com
Webster 1913 Edition
Strontianite
Stron′ti-an-ite
,Noun.
(Min.)
Strontium carbonate, a mineral of a white, greenish, or yellowish color, usually occurring in fibrous massive forms, but sometimes in prismatic crystals.
Webster 1828 Edition
Strontianite
STRONTIANITE
,Noun.
Prismatic baryte, a species of heavy spar.