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Norbergite
Norbergite

Amazonite
Amazonite



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Norbergite
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Amazonite

Norbergite and Amazonite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

Pale yellow very pale yellow colorlessAnthony et al
-

Dispersion

0.020.01
0.005 1
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Transparency

Transparent
Translucent, Translucent to opaque

Refractive Index

1.563-1.5931.522-1.530
1 3.25
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Optic Character

-
-

Crystal System

-
Triclinic

Birefringence

-99990.008-0.010
0 0.296
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Clarity

Transparent
Translucent

Norbergite and Amazonite Optic Character

Norbergite and Amazonite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Norbergite and Amazonite Physical Properties like crystallographic symmetry, pleochroism,etc. in the crystal. Some of the optical properties are refractive index, luster, optic character, pleochroism etc. Prominent among these is Norbergite and Amazonite optic character. You might have noticed your gemologist rotating the gemstone while testing it. Rotating a gemstone along its optic axis helps in determining its optic character.

Norbergite and Amazonite Transparency

Similar to their colors, Norbergite and Amazonite transparency can also be used as criteria for their primary identification. Although transparency cannot be the only criteria for gemstone identification, it can efficiently used in gemstone grading. Talking about their transparency, Norbergite is Transparent while Norbergite is Transparent in appearance.