Ruby and Peridot Optical Properties

Ruby

Peridot

Add ⊕

1 Optical Properties

1.1 Luster

Vitreous, Adamantine, Vitreous, Adamantine

Vitreous, Greasy

1.2 Pleochroism

Strong: purplish-red

Weak: yellow-green green (colorless)Herve Nicolas Lazzarelli

1.3 Dispersion

0.020.02

0.007 1

1.4 Transparency

Transparent, Translucent, Transparent to opaque

Transparent

1.5 Refractive Index

1.762-1.7781.64-1.69

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Trigonal

Orthorhombic

1.8 Birefringence

0.0080.036

0 0.296

1.9 Clarity

Transparent

Ruby and Peridot Optic Character

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

Compare Birthstones » More

Ruby Vs Opal

Ruby Vs Emerald

Ruby Vs Diamond

» More

More Compare Birthstones

Ruby and Peridot Transparency

Similar to their colors, Ruby and Peridot 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.