This Specimen has been sold.
3.9" Blue Octahedral Fluorite Crystals - China
This specimen contains beautiful octahedral and dodecahedral fluorite crystal aggregations, sitting atop and within a micro-crystal quartz bed. The majority of the fluorite crystals on this specimen are large and only have some minor chips and translucent. Purple phantoms can be seen when viewing the fluorite crystals from a perpendicular angle to the crystals' face.
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.