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Augite
Augite

Ammolite
Ammolite



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Augite
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Ammolite

Augite and Ammolite Optical Properties

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Optical Properties

Luster

Vitreous, Resinous
Silky, Vitreous

Pleochroism

Pale green
None

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

Transparent, Translucent
-

Refractive Index

1.671-1.7741.520-1.670
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/c
Trigonal

Birefringence

-99990.135-0.145
0 0.296
👆🏻

Clarity

Transparent
-

Augite and Ammolite Optic Character

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

Augite and Ammolite Transparency

Similar to their colors, Augite and Ammolite 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, Augite is Transparent and Translucent while Augite is Transparent and Translucent in appearance.