Smithsonite
Pronunciation : Smith"son*ite
Part of Speech : n.
Etymology : [See Smithsonian.] (Min.)
Definition : Defn: Native zinc carbonate. It generally occurs in stalactitic, reniform, or botryoidal shapes, of a white to gray, green, or brown color. See Note under Calamine.
Source : Webster's Unabridged Dictionary, 1913