Geology is Art in this mine wall raw specimen. Dozens of Quartz crystals compliment multiple stepped termination purple crystals of Fluorite, some of which feature striking color zoning, rise from the matrix interface. The matrix itself is a masterpiece of swirling, golden veins of Pyrite. Yindu Mine, Inner Mongolia. 6.5" x 4" x 1.75", 2.5 lbs