Schorl Specimen - Galileia, Brazil DX2712 phantom quartz and isotopic composition

and isotopic composition

Weight: 105 grams

Because of its harmonizing effects

with the chemical formula CaFeSi2O6

is a variety of agate characterized by the presence of needle-like or tubular mineral inclusions

Schorl Specimen - Galileia, Brazil DX2712 phantom quartz and isotopic compositionSchorl (Black Tourmaline) Approx. Dimensions: 2. 5 x 1. 5 x 1. 5 inches Approx. Weight: 93 grams Locality: Galileia, Minas Gerais, Brazil Acrylic stand and putty are not included. This specimen from Galileia has a very interesting structure. The top of the schorl has small formations of mica dispersed among the uneven terminations. Schorl, also known as black tourmaline, is a variety of tourmaline that is formed in a pegmatite environment, typically