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Tourmaline

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natural rough tourmaline

2015-1-6 11:31:08

Color : honey color

Size : mixed Production

Capacity : 10000 kg per month

Minimum order Quantity :  4 kg

Hardness : 7 - 7.5

Refractive Index : 1.62 - 1.64      

Relative Density : 3.03 - 3.10

Crystal Group : Trigonal

Transparency : semi transparent to transparent

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