Black Tourmaline Pyramid
Black tourmaline, also called Schorl, accounts for up to 95% of all tourmaline in nature. Black Tourmaline belongs to a family of aluminum borosilicates mixed with iron, magnesium, or other various metals. It's prismatic, vertically striated crystals may be long and slender, or thick and columnar, and are uniquely triangular in cross-section.
Chemical Formula: NaFe3 (Al, Fe) 6 [(OH, F) 4 (BO3) 2Si6O18]
***NOTE TO BUYER***
This is a "random selection" listing. You will NOT receive the exact item photographed in the listing, but one that is very similar. However, due to the unique nature of each mineral, the size, shape, and color may vary slightly.
Please reference secondary photos for examples of variations within the product. If you have certain specification requirements, please reach out via email.