Mineral Request - Black Tourmaline Rough

Rough black tourmaline is in a natural form and contains no other minerals. Generally we carry rough black tourmaline specimens that are 1 - 4 cm and larger decorator sizes that are 16 - 25 cm.

Specimen request listings on our website exist to help you learn about the item and to let us know you would like assistance making selection(s). Add this item to your order for more information about it.

Tourmaline is the most multicolored mineral type known, occurring in virtually every color of the spectrum. It has many interesting optical properties. When viewed through their vertical axis, some specimens appear darker or differ in color than when seen through their horizontal axis. Certain Tourmalines exhibit a cat's eye effect when polished. This mineral is also piezoelectric which means that through mechanical action an electric pulse is formed, similar to quartz.

Tourmaline is sought after as a talisman of protection to deflect and counteract negative energies. It is also used to guard against radiation and environmental pollutants.