( n. )
A mineral of a white to blue or gray color, occuring commonly in dodecahedrons, also massive. It is a silicate of alumina and soda with some chlorine.
( n. )
A mineral of a white to blue or gray color, occuring commonly in dodecahedrons, also massive. It is a silicate of alumina and soda with some chlorine.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012