2.25" Green Fluorite with Manganese Inclusions on Quartz - Arizona

Here is a beautiful 2.25" wide cluster of manganese included fluorite crystals that formed in association with quartz. This specimen was collected from the 3 Clowns Pocket in Oatman, Arizona. Under short wave UV, the fluorite fluoresces light purple in 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, and colorless, pink, and black are the rarest.

Quartz is the name given to silicon dioxide (SiO2) and is the second most abundant mineral in the Earth's crust. Quartz crystals generally grow in silica-rich environments--usually igneous rocks or hydrothermal environments like geothermal waters--at temperatures between 100°C and 450°C, and usually under very high pressure. In either case, crystals will precipitate as temperatures cool, just as ice gradually forms when water freezes. Quartz veins are formed when open fissures are filled with hot water during the closing stages of mountain formation: these veins can be hundreds of millions of years old.
FOR SALE
$29 $23
DETAILS
SPECIES
Fluorite & Quartz
LOCATION
3 Clowns Pocket, Hardy Vein System, Oatman, Arizona
SIZE
2.25" wide
CATEGORY
SUB CATEGORY
ITEM
#220908