from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A variety of albite, whitish and slightly iridescent.
from the GNU version of the Collaborative International Dictionary of English
- n. A variety of albite, whitish and slightly iridescent like a pigeon's neck.
from The Century Dictionary and Cyclopedia
- n. A variety of albite, exhibiting when properly cut a bluish opalescence like the changing hues on a pigeon's neck.
Ancient Greek a pigeon, referring to the iridescence of a pigeon's neck. (Wiktionary)