from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A fine-grained mica found in metamorphic rocks
from the GNU version of the Collaborative International Dictionary of English
- n. A kind of muscovite occuring in silky scales having a fibrous structure. It is characteristic of sericite schist.
from The Century Dictionary and Cyclopedia
- n. A variety of potash mica, or muscovite, occurring in fine scales of a greenish-or yellowish-white color: so named from its silky luster.
Sorry, no etymologies found.