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Apatite

Apatite is found in all rock types.

Chemical Formula: Ca₅(PO₄)₃F

Other names: Fluorapatite, Calcium tris(phosphate) fluoride

Layman's explanation: Apatite can be any of three different minerals depending on the predominance of fluorine, chlorine, or the hydroxyl group. It is typically green, and either transparent or translucent. It is prominently found and produced in Mexico, Ontario, Germany, Russia, USA, Sri Lanka and Brazil. Apatite can be cut into gemstones, although it is too soft and brittle to be a highly durable. Its main use is as a source of phosphate for fertilizer. An interesting fact about the name "apatite" is that it is part of what makes up the teeth in all vertebrae animals.

Keywords: phosphate, fertilizer

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