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Yttrium Aluminium Garnet
Yttrium Aluminium Garnet
☒

Chalcedony
Chalcedony
☒



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Yttrium Aluminium Garnet
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Chalcedony

Yttrium Aluminium Garnet and Chalcedony Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
-
-
0.03
-
1.833
-
-
-9999
TransparentUlrich Henn and Claudio C. Milisenda
 
Vitreous
-
0.01
Translucent, Translucent to opaque
1.530-1.543
-
Trigonal
0.003-0.009
Translucent

Yttrium Aluminium Garnet and Chalcedony Optic Character

Yttrium Aluminium Garnet and Chalcedony optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Yttrium Aluminium Garnet Vs Chalcedony 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 Yttrium Aluminium Garnet and Chalcedony 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.

Yttrium Aluminium Garnet and Chalcedony Transparency

Similar to their colors, Yttrium Aluminium Garnet and Chalcedony 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, Yttrium Aluminium Garnet is while Yttrium Aluminium Garnet is in appearance.