Any of a group of natural, variously colored calcium phosphate minerals containing fluorine, chlorine, or hydroxyl. These compounds form hexagonal crystals and are components of bones and teeth, are a source of phosphorus for plants, and are used in the manufacture of fertilizers.
Any of a group of variously colored, hard, hexagonal calcium minerals, Ca5(PO4,CO3)3 (F,OH,Cl), found mainly in sedimentary rocks, esp. phosphate rock, and in teeth and bones.
Webster's New World
(mineralogy) A calcium fluoride phosphate of variable composition, sometimes used in the manufacture of fertilizer.
Other Word Forms of Apatite
Origin of Apatite
From Greek apatē deceit (from its often being mistaken for other minerals)
From American Heritage Dictionary of the English Language, 5th Edition
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