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  1. Natural Gemstone 2.36 Ct. Octagon Shape Green Tourmaline Unheated

    Price:  $42.36

    Product ID: 807246539
    Product Name: Tourmaline
    Price : $42.36
    Weight: 2.36
    Jewelry Size: 6.7 x 6.2 x 5.6 Mm
    Shape: Octagon
    Color: Green
    Clarity: VSI
    Luster: Good
    Origin: Nigeria
    Treatment: Unheated
    Crystal Structure: Trigonal
    Hardness: 7 - 7.5
    Specific Gravity: 3.0+
    Refractive Index: 1.62 - 1.68
    Chemical: Na(Li,Al)3Al6(B03)3 Si6O18(OH)4
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