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Emerald
Emerald

Copper
Copper



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Emerald
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1 Optical Properties
1.1 Luster
Vitreous
Not Available
1.2 Pleochroism
Strong dichroism: yellow green Lazzarelli
Not Available
1.3 Dispersion
0.01NA
Fluorite Optical Properties
0.007 1
1.7 Transparency
Transparent, Translucent, Transparent to translucent
Not Available
1.10 Refractive Index
1.565-1.602Not Available
Agate Opal
1 3.25
2.5 Optic Character
Not Available
Not Available
2.6 Crystal System
Hexagonal
Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F m3m
2.7 Birefringence
0.0040-0.0070Not Available
Achroite
0 0.296
2.11 Clarity
Color grading system
Not Available