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Austinite
Austinite

Andradite
Andradite



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Austinite
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Andradite

Austinite and Andradite Optical Properties

Optical Properties

Luster

Subadamantine, Silky
Adamantine, Resinous

Pleochroism

-
-

Dispersion

0.030.06
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

1.7591.88-1.94
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
cubic

Birefringence

0.0240.057
0 0.296
👆🏻

Clarity

-
Transparent

Austinite and Andradite Optic Character

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

Austinite and Andradite Transparency

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