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Rhodolite
Rhodolite

Andradite
Andradite



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Rhodolite
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Andradite

Rhodolite and Andradite Optical Properties

Optical Properties

Luster

Greasy, Vitreous
Adamantine, Resinous

Pleochroism

None
-

Dispersion

0.030.06
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

1.7601.88-1.94
1 3.25
👆🏻

Optic Character

-
-

Crystal System

cubic
cubic

Birefringence

0.010-0.0140.057
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Transparent

Rhodolite and Andradite Optic Character

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

Rhodolite and Andradite Transparency

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