1.9" Black Tourmaline (Schorl), Hyalite Opal & Feldspar - Namibia

This is a lustrous schorl crystal cluster that's associtated with feldspar and a coating of hyalite opal, collected from the Erongo Mountains in Namibia. The hyalite opal will fluoresce vibrantly under UV lighting.

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.