Definitions for "Thorite"
A mineral of a brown to black color, or, as in the variety orangite, orange-yellow. It is essentially a silicate of thorium.
a radioactive mineral consisting of thorium silicate; it is a source of thorium that is found in coarse granite
a mineral, a silicate of thorium, occurring in crystals or in massive form. Thorite varies in color from orange-yellow to brownish-black or black. [AHDOS