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Elbaite
Elbaite

Austinite
Austinite



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Elbaite
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Austinite

Elbaite and Austinite Optical Properties

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Optical Properties

Luster

Vitreous
Subadamantine, Silky

Pleochroism

Pale green
-

Dispersion

0.020.03
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

1.614-1.6661.759
1 3.25
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Optic Character

-
-

Crystal System

Trigonal
Orthorhombic

Birefringence

0.014-0.0320.024
0 0.296
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Clarity

Transparent
-

Elbaite and Austinite Optic Character

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

Elbaite and Austinite Transparency

Similar to their colors, Elbaite and Austinite 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, Elbaite is Transparent while Elbaite is Transparent in appearance.