Ruby and Hibschite Optical Properties

Ruby

Hibschite

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1 Optical Properties

1.1 Luster

Vitreous, Adamantine, Vitreous, Adamantine

Vitreous

1.2 Pleochroism

Strong: purplish-red

Not Available

1.3 Dispersion

0.02NA

0.007 1

1.4 Transparency

Transparent, Translucent, Transparent to opaque

Semitransparent

1.5 Refractive Index

1.762-1.778Not Available

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Trigonal

Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: I a3d

1.8 Birefringence

0.008Not Available

0 0.296

1.9 Clarity

Transparent

TranslucentAnthony et al

Ruby and Hibschite Optic Character

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

Similar to their colors, Ruby and Hibschite 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.