showy specimens contain chunky calcite crystals of exceptional shape draped within a dazzling matrix of midnight blue to black fine sugar quartz
a crystal occurring in a wide variety of colors and forms
large calcite crystals and the dusting of fine gold from the pyrite is unique to specimens from this specific region of China and have not been found anywhere else
Originating from the famed Green River Formation in Wyoming
Barite is a mineral with an interesting history
Fluorite Mixed on Matrix Spessartine showy specimens contain chunky calciteFluorite is one of the most variable of all crystalline minerals, occurring in shades of blue, green, purple, red and many other colors corresponding to their physical makeup and conditions when the mineral was formed. The name fluorite comes from its use as a flux, or chemical cleaning agent, in iron smelting and other metallurgy. Pure fluorite is clear, but most specimens have vivid color due to various impurities and are often fluorescent. With a