Black Spinel Black Gems - Semi Precious Stones Supplier

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Main chemical composition: Refractive index of iron-magnesium-aluminum oxide:1.712-1.736Hardness: 8 MohsMelting point: 1800℃, high temperature resistant, can be wax setOriginal: ThailandSpinel is a hard vitreous magnesium aluminum oxide that has been used as a gemstone for centuries. It can be the high temperature for heating and wax casting in Jewelry. 

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14kt Gold Birthstone Alinea Ring 7 / September

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Buy Thai Black Spinel and Multi Gemstone Men's Ring in Platinum Over Sterling Silver (Size 14.0) 3.40 ctw at ShopLC.