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Crocoite
Crocoite

Amazonite
Amazonite



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Crocoite
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Amazonite

Crocoite and Amazonite Optical Properties

Optical Properties

Luster

Adamantine
Vitreous

Pleochroism

Distinctly trichroic
-

Dispersion

0.020.01
0.005 1
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Transparency

Transparent
Translucent, Translucent to opaque

Refractive Index

2.31-2.661.522-1.530
1 3.25
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Optic Character

-
-

Crystal System

Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/n
Triclinic

Birefringence

-99990.008-0.010
0 0.296
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Clarity

Transparent
Translucent

Crocoite and Amazonite Optic Character

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

Crocoite and Amazonite Transparency

Similar to their colors, Crocoite 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, Crocoite is Transparent while Crocoite is Transparent in appearance.