1.5" Purple-Blue Cubic Fluorite Crystals - Inner Mongolia
This is a gorgeous cluster of blue-purple cubic fluorite crystals on a muscovite encrusted matrix, collected from the Yindu Deposit in Inner Mongolia, China. The crystals have spots of deeper coloration peppered throughout the their interior.
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.