Black Tourmaline AA Grade, from Brazil (No.613)

Though less colourful than other varieties, Black Tourmaline (also known as Schorl) is one of the most popular stones for spiritual purposes. It forms in a wide range of sizes, from the half-inch double-terminated crystals of Nepal to large Brazilian crystals of several pounds each. Some of the best specimens come from Brazil, Africa, Pakistan, and Maine in the USA.

Black Tourmaline is widely considered as an excellent grounding stone and used as a stone for protection against negative energies, especially negative electrical energies, such as wifi signals or for those who spend a prolong time working with computers.