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Annabergite
Annabergite

Andradite
Andradite



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Annabergite
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Andradite

Annabergite and Andradite Optical Properties

Optical Properties

Luster

Subadamantine, Pearly
Adamantine, Resinous

Pleochroism

-
-

Dispersion

0.030.06
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

1.6221.88-1.94
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
cubic

Birefringence

0.0650.057
0 0.296
👆🏻

Clarity

-
Transparent

Annabergite and Andradite Optic Character

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

Annabergite and Andradite Transparency

Similar to their colors, Annabergite 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, Annabergite is while Annabergite is in appearance.