( n. )
A brittle gem occurring in light green, transparent crystals, affording a brilliant clinodiagonal cleavage. It is a silicate of alumina and glucina.
( n. )
A brittle gem occurring in light green, transparent crystals, affording a brilliant clinodiagonal cleavage. It is a silicate of alumina and glucina.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012