Ruby and Amblygonite Optical Properties

Ruby

Amblygonite

Add ⊕

Optical Properties

Luster

Vitreous, Adamantine

Vitreous, Pearly

Pleochroism

Strong: purplish-red

weak to none

Dispersion

0.020.01

0.005 1

👆🏻

Transparency

Transparent, Translucent, Transparent to opaque

Refractive Index

1.762-1.7781.578-1.646

1 3.25

👆🏻

Optic Character

Biaxial/+

Crystal System

Trigonal

Triclinic

Birefringence

0.0080.020-0.030

0 0.296

👆🏻

Clarity

Transparent

TransparentUlrich Henn and Claudio C. Milisenda

Ruby and Amblygonite Optic Character

Ruby and Amblygonite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Ruby and Amblygonite 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 Amblygonite 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. Amblygonite has Biaxial/+ character.

Compare Precious Gemstones

Ruby Vs Fancy Diamond

Ruby Vs Taaffeite

Ruby Vs Cat s Eye

Ruby and Amblygonite Transparency

Similar to their colors, Ruby and Amblygonite 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.