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Sapphire
Sapphire

Andradite Garnet
Andradite Garnet



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Andradite Garnet

Sapphire and Andradite Garnet Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Adamantine, Vitreous, Adamantine
Adamantine
1.2 Pleochroism
Strong
Not Available
1.3 Dispersion
Albite Optical ..
0.02
Rank: 21 (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparent, Translucent, Transparent to opaque
Transparent, Opaque, Transparent to opaque
1.5 Refractive Index
1.762-1.788
1.888-1.889
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Isometric
1.8 Birefringence
0.008-0.009
Not Available
1.9 Clarity
Transparent
Transparent to opaque

Sapphire and Andradite Garnet Optic Character

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

Sapphire and Andradite Garnet Transparency

Similar to their colors, Sapphire and Andradite 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, Sapphire is Translucent, Transparent and Transparent to opaque while Sapphire is Translucent, Transparent and Transparent to opaque in appearance.