3.9" Cubic, Green Fluorite (Dodecahedral Edges) - China

Here is an stunning, 3.9" wide specimen of green fluorite on a druzy quartz encrusted matrix from the Xianghualing-Xianghuapu Mines in China. The plate is made up of stunning cubic crystals with textured dodecahedral edges of up to .99" in length. The base of this specimen has been cut flat, allowing for aesthetic presentation of the crystals without the need for a display stand.

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.
Xianghualing-Xianghuapu Mines, China
3.9 x 2.3"