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Diaspore and Garnet Optical Properties


Garnet and Diaspore Optical Properties


Optical Properties

Luster
Pearly   
Vitreous, Adamantine, Vitreous, Adamantine   

Pleochroism
Strong   
None   

Dispersion
Not Available   
0.02   
16

Transparency
Transparent   
Transparent, Transparent to translucent   

Refractive Index
1.702-1.750   
1.730-1.895   

Optic Character
Not Available   
Not Available   

Crystal System
Orthorhombic   
Trigonal   

Birefringence
0.048   
Not Available   

Clarity
Transparent   
Transparent   

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<< Physical Properties

Diaspore and Garnet Optic Character

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

Similar to their colors, Diaspore and Garnet 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, Diaspore is Transparent while Diaspore is Transparent in appearance.

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