( n. )
A zeolitic mineral, grayish white or yellowish, occuring in delicate groups of crystals, also fibrous massive. It is a hydrous silicate of alumina, lime, and soda.
( n. )
A zeolitic mineral, grayish white or yellowish, occuring in delicate groups of crystals, also fibrous massive. It is a hydrous silicate of alumina, lime, and soda.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012