from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A fluorosilicate mineral of alumina occurring in tetrahedral crystals, chemical formula Al13Si5O20(OH,F)18Cl.
from the GNU version of the Collaborative International Dictionary of English
- n. A fluosilicate of alumina occurring in tetrahedral crystals at the Zuñi mine in Colorado.
from The Century Dictionary and Cyclopedia
- n. A fluosilicate of aluminium, occurring in glassy transparent tetrahedral crystals of the hardness of quartz: found at the Zuñi mine in Colorado.
Named after the Zuni mine, in Colorado. (Wiktionary)