• TOURMALINE CHROME 1.13 cts. VS. Mozambique, Africa

    VS. Mozambique, Africa. Tourmaline is a mineral of the family cyclosilicates. Chemical formula Al_6 Y_3 Na [(Si_6 O_ {18}) (BO_3) _3 (OH, F) _4], Y = Mg (Fe, Mn) or (Li, Al), tourmaline crystallized in the lens system trigonal rhombohedral to network sticks needles or elongated triangular section and curved faces.
    AU $311.82
    From France
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