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  1. 0.47 Ct. Clean Good Cutting Octagon Natural Gem Green Tourmaline Nigeria

    Price:  $12.42

    Product ID: 807248988
    Product Name: Tourmaline
    Price : $12.42
    Weight: 0.47
    Jewelry Size: 8 x 2.7 x 2.2 Mm
    Shape: Octagon
    Color: Green
    Clarity: IF
    Luster: Very 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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