• gem rough tri-color tourmalines - Nigeria

    Tourmaline – Natural, Rough, Red

    Tri-color tourmaline rough from Nigeria. © Dan Stair Custom Gemstones. Used with permission.

    Article: Tourmaline Value, Price, and Jewelry Information

    Credit: Dan Stair Custom Gemstones

    GemstoneTourmaline
    Natural or man madeNatural
    OriginNigeria
    Gem StateRough
    ColorRed, Green, Colorless
    TransparencyTransparent
    Multi-colorTri-color