hum·ite | \ ˈhyüˌmīt \
plural -s
Definition of humite
: a white, yellow, brown, or red mineral Mg7Si3O12(F1OH)2 consisting of a basic magnesium silicate containing fluorine that is brittle and of vitreous to resinous luster, that is found in the masses ejected from Vesuvius and elsewhere, and is related to chondrodite, norbergite, and olivine (hardness 6.–6.5; specific gravity 3.1–3.2)
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