from The Century Dictionary.
- noun A mineral often occurring in embedded grains of a yellow to red color, and also in perfect crystals.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Min.) A fluosilicate of magnesia and iron, yellow to red in color, often occurring in granular form in a crystalline limestone.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun mineralogy A
nesosilicate mineralwith chemical formula (Mg,Fe)5(F,OH)2(SiO4)2, the most frequently encountered member of the humitegroup.
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