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Meaning of hedenbergite

hed•en•berg•ite

Pronunciation: (hed'n-bur-gīt"), [key]
— n.
  1. a contact metamorphic mineral of the pyroxene family, calcium ferrous silicate, CaFe(SiO), that forms black prismatic crystals in crystalline limestone.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.