Ruby and Tigers Eye Optical Properties

Ruby

Tigers Eye

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1 Optical Properties

1.1 Luster

Vitreous, Adamantine, Vitreous, Adamantine

Silky

1.2 Pleochroism

Strong: purplish-red

Not Available

1.3 Dispersion

0.02None

0.007 1

1.4 Transparency

Transparent, Translucent, Transparent to opaque

Opaque

1.5 Refractive Index

1.762-1.7781.534-1.540

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Trigonal

1.8 Birefringence

0.008Not Available

0 0.296

1.9 Clarity

Transparent

Gemstones of the world (2001) More from other references

Ruby and Tigers Eye Optic Character

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

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Ruby and Tigers Eye Transparency

Similar to their colors, Ruby and Tigers Eye 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, Ruby is Translucent, Transparent and Transparent to opaque while Ruby is Translucent, Transparent and Transparent to opaque in appearance.