from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A zeolite mineral with a molecular structure similar to chabazite, usually found in weathered volcanic ash.
from The Century Dictionary and Cyclopedia
- n. A hydrated silicate of aluminium, calcium, sodium, and potassium, occurring in aggregates of wool-like fibers in cavities in a rhyolite tuff: found at Durkee, Oregon.
Sorry, no etymologies found.