from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A monoclinic-prismatic mineral containing fluorine, lithium, magnesium, oxygen, potassium, and silicon.
from The Century Dictionary and Cyclopedia
- n. A kind of lithium-mica occurring in colorless crystals having the form of strips or bands: its relations to the better-known species have not been determined: found in southern Greenland.
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