apatite

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A calcium fluoride phosphate of variable composition, sometimes used in the manufacture of fertilizer

We had prepared, by precipitation methods, finely divided crystalline apatites that were similar in crystal size and x-ray diffraction profile to bone apatite.

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A soft mineral which occurs in hexagonal forms; popular with rock collectors
a common complex mineral consisting of calcium fluoride phosphate or calcium chloride phosphate; a source of phosphorus
(homonym of appetite) <)))
almost all colours cuts bright clean stones but they are brittle and heat sensitive
{i} mineral
A member of the phosphate group of minerals, the world's major source of phosphorus, found as variously coloured, glassy crystals, masses, or nodules. Much of it has a chemical composition approximating Ca5(PO4)3(F,Cl,OH). If not for its softness, apatite would be a popular gemstone; some of the material found is clear, but it is fragile and difficult to cut and polish
a calcium fluoride phosphate of variable composition used in the manufacture of fertilizer
Native phosphate of lime, occurring usually in six-sided prisms, color often pale green, transparent or translucent
apatite
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