apatite definition

  • noun:
    • a normal, variously coloured calcium fluoride phosphate, Ca5F(PO4)3, with chlorine, hydroxyl, or carbonate often changing the fluoride. It is a source of phosphorus for flowers and it is utilized in the make of fertilizers.
    • A calcium fluoride phosphate of variable structure, often utilized in the manufacture of fertilizer.
    • Native phosphate of lime, occurring generally in six-sided prisms, shade usually pale green, clear or clear.
    • Native calcium phosphate with calcium fluorid or chlorid, generally speaking crystallized in hexagonal prisms, which are sometimes reduced and on occasion even tabular, sometimes elongated, and periodically of good dimensions.
    • a typical complex mineral comprising calcium fluoride phosphate or calcium chloride phosphate; a source of phosphorus

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