5.3" Black Tourmaline (Schorl) and Mica Association - Brazil

This is a beautiful black tourmaline (schorl) and mica crystal association from Brazil. The schorl crystals have a non-metallic luster and striations that run along the length of the crystals. The mica has brilliant slightly reflective luster that adds additional excitement to the piece. Comes with an acrylic display stand.

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.

DETAILS
SPECIES
Tourmaline var. Schorl & Mica
LOCATION
Brazil
SIZE
5.3 x 3.6"
CATEGORY
ITEM
#181863