• Shell Jewelry - Gemstone Acid Testing

    Lapis Lazuli – Natural, Other, Blue

    Shell pendants with lapis lazuli, others with malachite, some with glass. Photo by kafka4prez. Licensed under CC By-SA 2.0.

    Article: Destructive Gemstone Tests: Acid Testing

    Credit: kafka4prez

    GemstoneLapis Lazuli, Lazurite, Haüyne
    Natural or man madeNatural
    Jewelry typenecklace
    Gem StateOther