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Aragonite and Amethyst Optical Properties


Amethyst and Aragonite Optical Properties


Optical Properties

Luster
Vitreous, Resinous   
Vitreous   

Pleochroism
StrongArthur Thomas   
None   

Dispersion
Not Available   
0.01   
27

Transparency
Transparent, Translucent   
Transparent, Transparent to translucent   

Refractive Index
1.525-1.686   
1.544-1.553   

Optic Character
Not Available   
Not Available   

Crystal System
Orthorhombic   
Trigonal   

Birefringence
0.155   
0.009   

Clarity
Transparent   
Transparent   

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Aragonite and Amethyst Optic Character

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

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

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