Beryl (Var: Emerald) Crystals in Quartz & Biotite - Bahia, Brazil

These are dark green beryl emeralds from Bahia, Brazil. Two emeralds can be easily seen on what could be considered the top or face of the specimen. One crystal is 1.5" from end to end, with the second crystal measuring 1.8" (assuming the crystals protruding from either side of the top emerald, are connected). Another emerald is partially exposed on the back of the specimen as well.

This specimen comes with an acrylic display stand.

Beryl is a mineral 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 green, blue, yellow, white and red, depending on the incorporated impurities during formation. Red beryl is its rarest form, and can currently only be found in New Mexico and Utah.
Beryl, Quartz & Biotite
Carnaíba mining district, Pindobaçu, Campo Formoso ultramafic complex, Bahia, Brazil
Crystal measurement: 1.5" long, .5" wide. Matrix 2.4" long, 2.1" wide