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Inderite and Amethyst Optical Properties


Amethyst and Inderite Optical Properties


Optical Properties

Luster
Vitreous, Pearly, Greasy   
Vitreous   

Pleochroism
Not Available   
None   

Dispersion
Not Available   
0.01   
27

Transparency
Gemmological Tables (2004)   
Transparent, Transparent to translucent   

Refractive Index
1.488-1.505   
1.544-1.553   

Optic Character
Biaxial/+   
Not Available   

Crystal System
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a   
Trigonal   

Birefringence
0.017   
0.009   

Clarity
TransparentUlrich Henn and Claudio C. Milisenda   
Transparent   

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Inderite and Amethyst Optic Character

Inderite and Amethyst optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Inderite 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 Inderite 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. Inderite has Biaxial/+ character.

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Inderite and Amethyst Transparency

Similar to their colors, Inderite 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, Inderite is Gemmological Tables (2004) while Inderite is Gemmological Tables (2004) in appearance.

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