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$55.00 USD
价格

7.90 Carats Beautifull Fancy Cushion Cut Natural Apatite Gemstone

存货单位
尺寸(毫米)
13.000 x 11.000 x 7.000mm
重量 (cts)
7.900
Treatment
No Treatment
类型
Faceted
Shape
Cushion
颜色

weight: 7.90 carats

dimension: 13 x 11 x 7 mm

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.

The mineral was named apatite by the German geologist Abraham Gottlob Werner in 1786,[3] although the specific mineral he had described was reclassified as fluorapatite in 1860 by the German mineralogist Karl Friedrich August Rammelsberg. Apatite is often mistaken for other minerals. This tendency is reflected in the mineral’s name, which is derived from the Greek word απατείν (apatein), which means to deceive or to be misleading

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msgemsminerals
msgemsminerals
100% Natural Loose Gemstone Available
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    svenyo
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    Thanks for all.Nice and good quality.Best greetings.

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    Paid and shipped - no feedback left after 100 days

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    gatorbearca
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    Unfortuntely this items was lost in transit Seller was slow to respond and never gave any tracking updates after repeated status requests After over 3 months the seller gave a full refund

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    luxj
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    Paid and shipped - no feedback left after 100 days

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发货自:
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概述

列表类型 : Standard
产品编号 : 2261555
开始 : 19th November 2024 06:21 am PST
* 所有价格均以:货币为单位