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Augite
Augite

Amblygonite
Amblygonite



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Augite
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Amblygonite

Augite and Amblygonite Optical Properties

Optical Properties

Luster

Vitreous, Resinous
Vitreous, Pearly

Pleochroism

Pale green
weak to none

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

Transparent, Translucent
-

Refractive Index

1.671-1.7741.578-1.646
1 3.25
👆🏻

Optic Character

-
Biaxial/+

Crystal System

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

Birefringence

-99990.020-0.030
0 0.296
👆🏻

Clarity

Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Augite and Amblygonite Optic Character

Augite and Amblygonite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Augite and Amblygonite 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 Amblygonite 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. Amblygonite has Biaxial/+ character.

Augite and Amblygonite Transparency

Similar to their colors, Augite and Amblygonite 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.