2.6" Black Tourmaline (Schorl) Crystal Cluster - Mexico

This is a beautiful black tourmaline (schorl) crystal cluster. The portions of exposed tourmaline exhibit wonderful luster and gorgeous, natural terminations. These crystals could be further exposed with additional prep work. This specimen was listed as coming from Mexico, however we have not been able to independently verify this.

Schorl, also known as "black tourmaline" or "black schorl", is a black form of tourmaline that often occurs as lustrous prismatic crystals. The crystals can be stubby or elongated and typically feature striations that run along the length of the crystal. Many schorl crystals have flattened pyramidal terminations. They can also form in radiating, columnar and stalactitic aggregations, as well as small needle-like inclusions within quartz (tourmalinated quartz) and in massive form.

Schorl is a basic sodium iron aluminum boro-silicate and the generic chemical formula is NaFe2 + 3Al6(BO3)3Si6O18(OH)4 . It has been used for everything from jewelry to piezoelectric guitar pickups.

Tourmaline var. Schorl
2.6 x 1.6"