| apatite | <chemical> Native phosphate of lime, occurring usually in six-sided prisms, colour often pale green, transparent or translucent. Origin: Gr. Deceit, fr. To deceive; it having been often mistaken for other minerals. Source: Websters Dictionary (01 Mar 1998) |
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| apatite calculus | A calculus in which the crystalloid component consists of calcium fluorophosphate. (05 Mar 2000) |
| apatites | A group of phosphate minerals that includes ten mineral species and has the general formula x5(yo4)3z, where x is usually calcium or lead, y is phosphorus or arsenic, and z is chlorine, fluorine, or oh-. (12 Dec 1998) |
| calcium hydroxy apatite | <radiology> All calcification in soft tissues is hydroxyapatite, except cartilage (chondrocalcinosis): calcium pyrophosphate see also: Milwaukee shoulder (12 Dec 1998) |
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