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Spodumene
Spodumene

Augite
Augite



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Spodumene
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Augite

Spodumene and Augite Optical Properties

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Optical Properties

Luster

Vitreous
Vitreous, Resinous

Pleochroism

Strong in kunzite: α-purple
Pale green

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

Transparent
Transparent, Translucent

Refractive Index

1.657-1.6811.671-1.774
1 3.25
👆🏻

Optic Character

-
-

Crystal System

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

Birefringence

0.014-0.018-9999
0 0.296
👆🏻

Clarity

-
Transparent

Spodumene and Augite Optic Character

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

Spodumene and Augite Transparency

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