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Corundum and Aragonite Optical Properties


Aragonite and Corundum Optical Properties


Optical Properties

Luster
Adamantine, Vitreous   
Vitreous, Resinous   

Pleochroism
None   
StrongArthur Thomas   

Dispersion
0.02   
21
Not Available   

Transparency
Transparent, Translucent   
Transparent, Translucent   

Refractive Index
1.758-1.780   
1.525-1.686   

Optic Character
Not Available   
Not Available   

Crystal System
Trigonal   
Orthorhombic   

Birefringence
0.007-0.010   
0.155   

Clarity
Gemmological Tables (2004) More from other references   
Transparent   

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Corundum and Aragonite Optic Character

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

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Corundum and Aragonite Transparency

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

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