Formica(Th) Co., Ltd.
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NG Black Spinel
Production Lead Time:
14 day(s)
Brand:
Formica Nanogem
Colour:
Black
Port:
Bangkok
Description
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Description
This is an NG spinel stone in deep black with a round cut. It is well cut and polished for maximum luster. It is excellent for making different kinds of jewelry like necklaces, earrings, bracelets, and so on.
- Hardness: 7-7.5.
- Refractive index: 1.61-1.64.
- Density: 3.0-3.3g/cm³.
- Wax casting: suitable 100% .
- Melting temperature: 1,600-1,750℃.
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Supplier info last updated: 28 Feb 2020
Advertise since: 1 Jan 2014
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