apatite


ap·a·tite

noun \ˈap-ə-ˌtīt\

Definition of APATITE

: any of a group of calcium phosphate minerals occurring variously as hexagonal crystals, as granular masses, or in fine-grained masses as the chief constituent of bones and teeth and of phosphate rock; especially : calcium phosphate fluoride Ca5F(PO4)3

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