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Star Ruby
Star Ruby

Corundum
Corundum



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Star Ruby
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Corundum

Star Ruby and Corundum Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Adamantine, Vitreous
1.2 Pleochroism
Not Available
None
1.3 Dispersion
NA0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Transparent, Translucent
1.5 Refractive Index
1.757-1.7801.758-1.780
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Trigonal
1.8 Birefringence
0.007-0.0100.007-0.010
Achroite
0 0.296
1.9 Clarity
Transparent
Gemmological Tables (2004) More from other references

Star Ruby and Corundum Optic Character

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

Star Ruby and Corundum Transparency

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