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Caledonite and Garnet Optical Properties


Garnet and Caledonite Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous, Adamantine, Vitreous, Adamantine   

Pleochroism
Weak   
None   

Dispersion
Not Available   
0.02   
16

Transparency
Transparent   
Transparent, Transparent to translucent   

Refractive Index
1.818-1.909   
1.730-1.895   

Optic Character
Not Available   
Not Available   

Crystal System
Orthorhombic   
Trigonal   

Birefringence
0.091   
Not Available   

Clarity
Transparent   
Transparent   

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Caledonite and Garnet Optic Character

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

Similar to their colors, Caledonite 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, Caledonite is Transparent while Caledonite is Transparent in appearance.

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