Ruby and Titanite Optical Properties

Ruby

Titanite

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Optical Properties

Luster

Vitreous, Adamantine

Subadamantine, Resinous

Pleochroism

Strong: purplish-red

Strong: X = nearly colorless; Y = yellow to green; Z = red to yellow-orange

Dispersion

0.020.05

0.005 1

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Transparency

Transparent, Translucent, Transparent to opaque

Refractive Index

1.762-1.7781.885-1.990

1 3.25

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Optic Character

Crystal System

Trigonal

monoclinic

Birefringence

0.0080.105-0.135

0 0.296

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Clarity

Transparent

Ruby and Titanite Optic Character

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

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