1.9" Beryl (Var: Emerald) Crystal in Schist & Graphite - Bahia, Brazil

This is a large green beryl emerald from Bahia, Brazil. This 1.9" long, .72" wide emerald crystal segment is surrounded by graphite and schist. The metallic graphite can be found along the edge, as well as what could be considered the top of the specimen. Separate segments of emerald can be seen throughout the matrix of this specimen, although none quite the quality of the center emerald.

Beryl is a mineral that's composed of beryllium aluminum cyclosilicate, with the chemical formula Be3Al2(SiO3)6. Naturally occurring beryl tends to form hexagonal crystals that can reach several meters in size if given the right conditions. Completely pure beryl will be transparent and colorless, while mineral impurities frequently tint the crystals color in most specimens.

Well known varieties of beryl include aquamarine and emerald, although beryl can also be yellow, white, and red, depending on the available impurities during formation. Red beryl is considered to be the rarest form and is currently only known to be found in New Mexico and Utah.
Beryl, Schist & Graphite
Carnaíba mining district, Pindobaçu, Campo Formoso ultramafic complex, Bahia, Brazil
Crystal measurement: 1.9"" long, .72" wide! Matrix 3.1" long, 2.6" wide