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Beryl (Var: Emerald) Crystals in Biotite & Quartz - Bahia, Brazil
This is a beautiful green beryl emerald crystal cluster from Bahia, Brazil. The longest visible emerald is 1.2" long, and is surrounded by emerald, quartz, schist and biotite. The color displayed by the emeralds in this specimen are quite vibrant and rich for their locality. Small amounts of metallic graphite can be found around the specimen as well.
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.
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.
SPECIES
Beryl, Quartz, Graphite & Biotite
LOCATION
Carnaíba mining district, Pindobaçu, Campo Formoso ultramafic complex, Bahia, Brazil
SIZE
Crystal measurement: 1.2" long, .4" wide. Matrix 2.7" long, 2.2" tall
CATEGORY
ITEM
#44123
