Beautiful 6.58" Fluorite & Calcite on Matrix, China
Here is a beautiful 6.58" light-green fluorite on matrix from the Xianghualing-Xianghuapu Mines, China. The plate is made up of stunning cubic crystals with textured dodecahedral edges of up to 2.32" sitting on a matrix of gray barite. There are also a few well-formed small calcite crystals present on this eye-catching specimen.
Fluorite is a halide mineral comprised of calcium and fluorine, CaF2. The word fluorite is from the Latin fluo-, which means to flow. In 1852 fluorite gave its name to the phenomenon known as fluorescence, or the property of fluorite to glow a different color depending upon the bandwidth of the ultraviolet light it is exposed to. Fluorite occurs commonly in cubic, octahedral and dodecahedral crystals in many different colors. These colors range from colorless and completely transparent to yellow, green, blue, purple, pink or black. Purples and greens tend to be the most common colors seen.