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Amazonite
Amazonite

Helenite
Helenite



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Amazonite
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Helenite

Amazonite and Helenite Optical Properties

Optical Properties

Luster

Vitreous
-

Pleochroism

-
-

Dispersion

0.010.04
0.005 1
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Transparency

Translucent, Translucent to opaque
-

Refractive Index

1.522-1.530-9999
1 3.25
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Optic Character

-
-

Crystal System

Triclinic
-

Birefringence

0.008-0.010-9999
0 0.296
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Clarity

Translucent
-

Amazonite and Helenite Optic Character

Amazonite and Helenite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Amazonite and Helenite 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 Amazonite and Helenite 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.

Amazonite and Helenite Transparency

Similar to their colors, Amazonite and Helenite 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, Amazonite is Translucent and Translucent to opaque while Amazonite is Translucent and Translucent to opaque in appearance.