13.50 Carats Natural Apatite Gemstone

Item Information

Dimensions (mm) 13 x 13 x 10mm
Weight (carats) 13.5 carats
Colors
No Treatment

Apatite is a group of phosphate minerals, usually referring to hydroxylapatite, fluorapatite and chlorapatite, with high concentrations of OH, F and Cl ions, respectively, in the crystal. The formula of the admixture of the three most common endmembers is written as Ca10(PO4)6(OH,F,Cl)2, and the crystal unit cell formulae of the individual minerals are written as Ca10(PO4)6(OH)2, Ca10(PO4)6F2 and Ca10(PO4)6Cl2.

Apatite is one of a few minerals produced and used by biological micro-environmental systems. Apatite is the defining mineral for 5 on the Mohs scale. Hydroxyapatite, also known as hydroxylapatite, is the major component of tooth enamel and bone mineral. A relatively rare form of apatite in which most of the OH groups are absent and containing many carbonate and acid phosphate substitutions is a large component of bone material.

Natural Apatite Gemstone

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$420.00 USD

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Pricing & Details

Auction ID 927237
Watchers 1 watching
Viewed 85 times
Starts 4th May 2019 5:58am PDT

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