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33# corundum sapphire OCT normal cut in stock

* Hardness: 9

* Refraction Index: 1.76

* Density: 3.99 g/cm³

* Melting Point: 2050 c°

* Wax Casting: Yes 


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info@xinyan-gems.com

+86 133 4258 8091

No.3502, Unite 2, Gem Building, Xihuan Road, Wuzhou, Guangxi, China

Xinyan Gems Co., Ltd.

No.3502, Unite 2, Gem Building, Xihuan Road, Wuzhou, Guangxi, China