Barite
Pronunciation : Ba"rite
Part of Speech : n.
Definition : Defn: Native sulphate of barium, a mineral occurring in transparent, colorless, white to yellow crystals (generally tabular), also in granular form, and in compact massive forms resembling marble. It has a high specific gravity, and hence is often called heavy spar. It is a common mineral in metallic veins.
(Min.)
Source : Webster's Unabridged Dictionary, 1913