Definify.com

Webster 1913 Edition

Noun.

[From an English chemist, H.E.

Roscoe

-lite

(Min.)

A green micaceous mineral occurring in minute scales. It is essentially a silicate of aluminia and potash containing vanadium.

roscoelite

(mineralogy) A monoclinic-prismatic mineral containing aluminum, hydrogen, magnesium, oxygen, potassium, silicon, and vanadium.