from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A triclinic-pedial mineral containing aluminum, calcium, hydrogen, oxygen, and silicon.
from the GNU version of the Collaborative International Dictionary of English
- n. A crystallized, transparent mineral of the Zeolite family. It is a hydrous silicate of alumina and lime.
from The Century Dictionary and Cyclopedia
- n. A white translucent mineral crystallizing in the monoclinic system and belonging to the zeolites. It is a hydrous silicate of aluminium, calcium, and sodium.