SCHORL (BLACK TOURMALINE) ON MICROCLINE, ERONGO MOUNTAINS NAMIBIA

This specimen is classic material and was showcasing during the Tuscon Mineral Show 2003. Maybe not the cheapest, but a classic piece of quality, hard to find.

Tourmaline is a crystalline silicate mineral group characterized by the presence of boron combined with elements like aluminum, iron, magnesium, sodium, lithium, or potassium. This gemstone is known for its extensive range of colors.

The term "tourmaline" originates from the Sinhalese word tōramalli, which pertains to carnelian gemstones.