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Aragonite
Aragonite

Andradite
Andradite



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Aragonite
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Andradite

Aragonite and Andradite Optical Properties

Optical Properties

Luster

Vitreous, Resinous
Adamantine, Resinous

Pleochroism

StrongArthur Thomas
-

Dispersion

0.170.06
0.005 1
👆🏻

Transparency

Transparent, Translucent
Transparent

Refractive Index

1.525-1.6861.88-1.94
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
cubic

Birefringence

0.1550.057
0 0.296
👆🏻

Clarity

Transparent
Transparent

Aragonite and Andradite Optic Character

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

Aragonite and Andradite Transparency

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