• AMETHYST

    The essence of the color purple, amethyst is beautiful enough for crown jewels yet affordable enough for class rings.

     

    • Mineral: Chrysoberyl
    • Chemistry: BeAl2O4
    • Color: Bluish green in daylight, purplish-red in incandescent light
    • Refractive Index: 1.746 to 1.755
    • Birefringence: 0.008 to 0.010
    • Specific Gravity: 3.73
    • Mohs Hardness: 8.5

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