from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A monoclinic-prismatic mineral containing fluorine, hydrogen, iron, magnesium, oxygen, and silicon.
from The Century Dictionary and Cyclopedia
- n. A fluosilicate of magnesium occurring in small yellow monoclinic crystals at Vesuvius. It is a subspecies under the general head of humite. See humite.
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