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Agate (cross)

Agate (cross)

    This variety of agate contains iron oxides. Depending of the shape of these inclusions it is possible to highlight geometric shapes, including crosses.

    To learn more about the mineralogy of the agate (cross), see Mindat.ord

    See the agate (cross) for sale

     

    Gemological data

    • Chemical formula : SiO2
    • Hardness (Mohs) : 6.5/7
    • Density : 2.6
    • Refractive index : 1.53 - 1.54
    • Birefingence : 0.004 - 0.009
    • Crystal system : Rhomboedric - Trigonal
    • Group : Micro crystallized quartz

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