from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A phenomena, exhibited by some specimens of the mineral adularia, exhibiting a bluish sheen along crystal faces. Adularia with this property is called moonstone. (See sanidine).
from The Century Dictionary and Cyclopedia
- n. The chatoyancy of the adularia variety of feldspar; the moon-like sheen of the moonstone, best visible when the stone is cut with a convex dome.
Sorry, no etymologies found.