Name of Mineral :Iolite
Mohs Hardness : 7~7
1/2
Refractive Index : 1.542~1.551
Specific Gravity : 2.61
Weight :3.44 ct
Size (mm) : L 11.1 x W 9.2 x D 5.72
Untreated
Gem Quality
us $1,000
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