POLISHED TOURMALINE

Tourmaline is a wildly popular mineral group among collectors given its proclivity to form large, striated crystals that appear in almost every color, even multiple colors at once! It often forms elongated, hexagonal, prismatic crystals with heavy striations. These crystals are typically unearthed in large, columnar aggregations.

Tourmaline is not one mineral but a group of closely related ones. The three most abundant varieties are schorl (black), elbaite (multi-colored, red, or green), and dravite (brown or lime green). Lesser known varieties of tourmaline include uvite, liddicoatite, and buergerite.