This Specimen has been sold.
2.5" Gemmy, Yellow, Cubic Fluorite Cluster - Moscona Mine, Spain
This is a 2.5" wide yellow fluorite crystal cluster that formed in association with dolomite crystals, collected from the Moscona Mine in Asturias, Spain. The crystals are translucent, fluorescent and exhibit a beautiful yellow color. Under longwave UV, yellow fluorescent phantoms can be seen within the crystals, while under shortwave UV, the crystals fluoresce a white color.
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.