Fluorite, Calcite

Unknown Owner

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This fluorite specimen, mined in 1991 at the Minerva Mine, shows some gorgeous zoning! The larger crystals have yellow interiors with purple outlines. The smaller ones have purple interiors, with a stripe of teal-blue in the clear part outside the purple core! Somehow, these crystals, though in the same cluster, formed at different times when the solution in the pocket varied, leading to the differences in hues as the crystals grew. Note the little calcite decorating the crystal faces as well! 9.1 x 7.8 x 7.5cm