from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A fibrous form of silica similar to chalcedony
from The Century Dictionary and Cyclopedia
- Composed of or resembling quartz.
- n. Anhydrous silica having a fibrous structure but differing from normal quartz in having a slightly lower density and also in optical characters. See lutecine.
Sorry, no etymologies found.