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  1. Unheated 2.49 Ct. Octagon Natural Gem Green Tourmaline Nigeria

    Price:  $32.04

    Product ID: 807239769
    Product Name: Tourmaline
    Price : $32.04
    Weight: 2.49
    Jewelry Size: 7.5 x 6.8 x 5.3 Mm
    Shape: Octagon
    Color: Green
    Clarity: VVS
    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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