2.3" Black Tourmaline (Schorl) & Fluorite Association - Namibia

Here is a beautiful assocation of purple/green fluorite that formed from a bed of needle-like black tourmaline crystals, collected from the Erongo Mountains in Namibia.

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.

Tourmaline is a crystalline boron silicate mineral compounded with elements such as aluminium, iron, magnesium, sodium, lithium, or potassium. Schorl, or black tourmaline, is the most common form of tourmaline, and has been used for everything from jewelry to piezoelectric guitar pickups.

Black Tourmaline (Schorl) & Fluorite
Erongo Mountains, Namibia
2.3" wide