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Brushite

 
(′brə′shīt)

(mineralogy) CaHPO4·2H2O A nearly colorless mineral that is a constituent of rock phosphates that crystallizes in slender or massive crystals.


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Brushite is a mineral with a chemical formula CaHPO4·2H2O. It is believed to be precursor of apatite and is found in guano-rich caves, formed by the interaction of guano with calcite and clay at a low pH. Brushite was first described in 1865 and named for the American mineralogist George Jarvis Brush (1831-1912). It forms crystals of prismatic shape having a monoclinic crystal structure.[1]

Brushite is the original precipitating material in the calcium phosphate kidney stones.

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newberyite (mineralogy)
urolith
George Jarvis Brush

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