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Corundum
Corundum

Diamond
Diamond



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Corundum
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Diamond

Corundum and Diamond Optical Properties

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1 Optical Properties
1.1 Luster
Adamantine, Vitreous
Adamantine
1.2 Pleochroism
None
None
1.3 Dispersion
0.020.04
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Transparent, Translucent, Transparent to opaque
1.5 Refractive Index
1.758-1.7802.417-2.419
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
cubic
1.8 Birefringence
0.007-0.010Not Available
Achroite
0 0.296
1.9 Clarity
Gemmological Tables (2004) More from other references
Transparent

Corundum and Diamond Optic Character

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

Corundum and Diamond Transparency

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