biotite

English Thesaurus

1. dark brown to black mica found in igneous and metamorphic rock (noun.substance)

hypernym	:	isinglass, mica,
definition	:	any of various minerals consisting of hydrous silicates of aluminum or potassium etc. that crystallize in forms that allow perfect cleavage into very thin leaves; used as dielectrics because of their resistance to electricity (noun.substance)

hyponym	:	lepidomelane,
definition	:	a mica that is a biotite containing iron (noun.substance)

derivation	:	biotitic,
definition	:	relating to or involving biotite (adj.pert)

derivation	:	biotitic,
definition	:	relating to or involving biotite (adj.pert)