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Diamond and Sapphire Optical Properties

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1 Optical Properties
1.1 Luster
Adamantine
Vitreous, Adamantine, Vitreous, Adamantine
1.2 Pleochroism
None
Strong
1.3 Dispersion
Albite Optical ..
0.04
Rank: 10 (Overall)
0.02
Rank: 21 (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparent, Translucent, Transparent to opaque
Transparent, Translucent, Transparent to opaque
1.5 Refractive Index
2.417-2.419
1.762-1.788
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
cubic
Trigonal
1.8 Birefringence
Not Available
0.008-0.009
1.9 Clarity
Transparent
Transparent

Diamond and Sapphire Optic Character

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

Diamond and Sapphire Transparency

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