from The Century Dictionary.
- noun 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.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun 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).
Sorry, no etymologies found.
It's magical and has this great quality called adularescence, which makes a blue flash that is beautiful on the skin.