• tanzanite buying - natural rough

    Tanzanite (Zoisite) – Natural, Rough, Blue

    This large tanzanite crystal exhibits deep blue color. When lit along the c-axis, red hues dominate. Red or brown in the c-axis may indicate a natural, unheated stone. © Rob Lavinsky, www.iRocks.com. Used with permission.

    Article: Tanzanite Buying Guide

    Credit: www.iRocks.com

    GemstoneTanzanite (Zoisite), Zoisite
    Natural or man madeNatural
    Gem StateRough
    Photo pleochroismTrichroic (3 colors)