Name of Mineral : Tourmaline
Mohs Hardness :7~7
1/2
Refractive Index :1.624 x 1.644
Specific Gravity :3.06
Weight : 14.45 ct
Size (mm) : L 18.0 x W 10.7 x D 8.36
Untreated
Gem Quality
US $12,000
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