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About Apatite stone
Apatite was named in 1786 by German geologist Abraham Gottlob Werner , Apatite gems can be found in colours of green, blue, violet, purple, pink, yellow, colourless and brown. Neon blue to apatite that is blue-green Madagascar is one of the rarest and most sought after colours. Blue cat’s eye Apatite from Brazil and Madagascar is also rarely available. Green Apatite has been called stone that is asparagus a bluish-green variety of Apatite originally found in Arendal, Norway was called moroxite. Apatite is an outstanding treasure whenever precisely cut although it is simply too soft for jewellery settings that are most. Apatite is the defining reference mineral for 5 on the Mohs scale of hardness. Apatite often exhibits bright yellow or blue fluorescence that is white UV light and may also be phosphorescent, especially the manganoan varieties. It is also strongly thermoluminescent at times
Properties Of Apatite Stone
Chemical Composition: Ca5(PO4)3(F,CI,OH) – Calcium fluoro-chloro-hydroxyl phosphate
Common Individual Group Members:
Fluorapatite – Calcium fluoro-phosphate
Cholorapatite – Calcium chloro-phosphate
Hyldroxylapatite – Basic calcium phosphate
Hardness:5.00Moh
Specific Gravity (Density): 3.16 to 3.23
Refractive Index: 1.628 to 1.649(DR)
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