from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A hydrated silicate mineral found in sodium- and calcium-dominated forms.
from the GNU version of the Collaborative International Dictionary of English
- n. A whitish, reddish, or yellowish, transparent or translucent mineral, allied to chabazite.
from The Century Dictionary and Cyclopedia
- n. A mineral found in Ireland, the Faroe Islands, and some other places. It belongs to the zeolite group, and is a hydrated silicate of calcium and aluminium. It is related to chabazite.
Armand Levy (1794-1841), French mineralogist. (Wiktionary)