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Gahnite and Garnet Optical Properties


Garnet and Gahnite Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous, Adamantine, Vitreous, Adamantine   

Pleochroism
Not Available   
None   

Dispersion
Not Available   
0.02   
16

Transparency
Gemmological Tables (2004) More from other references   
Transparent, Transparent to translucent   

Refractive Index
1.790-1.818   
1.730-1.895   

Optic Character
Not Available   
Not Available   

Crystal System
cubic   
Trigonal   

Birefringence
Not Available   
Not Available   

Clarity
TransparentUlrich Henn and Claudio C. Milisenda   
Transparent   

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Gahnite and Garnet Optic Character

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

Similar to their colors, Gahnite 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, Gahnite is Gemmological Tables (2004) More from other references while Gahnite is Gemmological Tables (2004) More from other references in appearance.

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