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Pyrophyllite and Garnet Optical Properties


Garnet and Pyrophyllite Optical Properties


Optical Properties

Luster
Pearly   
Vitreous, Adamantine, Vitreous, Adamantine   

Pleochroism
NilArthur Thomas   
None   

Dispersion
Not Available   
0.02   
16

Transparency
Translucent   
Transparent, Transparent to translucent   

Refractive Index
1.534-1.601   
1.730-1.895   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
Trigonal   

Birefringence
0.050   
Not Available   

Clarity
Translucent   
Transparent   

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Pyrophyllite and Garnet Optic Character

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

Similar to their colors, Pyrophyllite 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, Pyrophyllite is Translucent while Pyrophyllite is Translucent in appearance.

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