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Achroite
Achroite

Spodumene
Spodumene



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Achroite
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Spodumene

Achroite and Spodumene Optical Properties

Optical Properties

Luster

-
Vitreous

Pleochroism

-
Strong in kunzite: α-purple

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

Transparent, Translucent
Transparent

Refractive Index

1.614-1.6661.657-1.681
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
monoclinic

Birefringence

0.014-0.0400.014-0.018
0 0.296
👆🏻

Clarity

Transparent
-

Achroite and Spodumene Optic Character

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

Achroite and Spodumene Transparency

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