We carry Colombian & Brazilian Emeralds, to serve manufacturers, fine retail jewelers & fine jewelry designers.
for more information please contact us.

Table of contents:

Color: Emerald green, light green, yellow-green, dark green Color of streak: White Mohs' hardness: 7.5-8 Specific gravity: 2.67-2.78 Cleavage: None Fracture: Small conchoidal, uneven, brittle Crystal system: Hexagonal (trigonal); hexagonal prisms, columnar Chemical composition: Al2 Be3 (Si6O18) aluminium beryllium silicate

Transparency: Transparent to opaque Refractive index: 1.576-1.582 Double refraction: 0.006 Dispersion: 0.014 Pleochroism: Definite; green, blue-green to yellow-green Absorption spectrum: 6835, 6806 6620, 6460, 6370, (6060), (5940), 6300-5800, 4774, 4725 Fluorescence: Usually none

 

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