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Carnelian
Carnelian

Gadolinium Gallium Garnet
Gadolinium Gallium Garnet



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Carnelian
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Gadolinium Gallium Garnet

Carnelian and Gadolinium Gallium Garnet Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Not Available
1.2 Pleochroism
AbsentWalter Schumann
Not Available
1.3 Dispersion
NoneNA
Fluorite Optical Properties
0.007 1
2.5 Transparency
Translucent, Transparent to nearly opaque
Not Available
2.6 Refractive Index
1.535-1.5391.97-2.03
Agate Opal
1 3.25
2.7 Optic Character
Not Available
Not Available
2.8 Crystal System
Trigonal
Not Available
2.9 Birefringence
0.003-0.009Not Available
Achroite
0 0.296
2.10 Clarity
Translucent
Not Available

Carnelian and Gadolinium Gallium Garnet Optic Character

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

Carnelian and Gadolinium Gallium Garnet Transparency

Similar to their colors, Carnelian and Gadolinium Gallium 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, Carnelian is Translucent and Transparent to nearly opaque while Carnelian is Translucent and Transparent to nearly opaque in appearance.