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  1. 1.81 Ct. Natural Oval Shape Green Tourmaline Gemstone Nigeria

    Price:  $32.97

    Product ID: 807235564
    Product Name: Tourmaline
    Price : $32.97
    Weight: 1.81
    Jewelry Size: 7.9. x 6.6 x 5 Mm
    Shape: Oval
    Color: Green
    Clarity: SI1
    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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