Andesine and Ruby Optical Properties

Andesine

Ruby

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Optical Properties

Luster

Vitreous

Vitreous, Adamantine

Pleochroism

colorless.

Strong: purplish-red

Dispersion

0.700.02

0.005 1

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Transparency

Transparent, Translucent, Transparent to translucent

Transparent, Translucent, Transparent to opaque

Refractive Index

1.543-1.5641.762-1.778

1 3.25

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Optic Character

Biaxial/+

Crystal System

Triclinic

Trigonal

Birefringence

0.007-0.0110.008

0 0.296

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Clarity

Transparent

Andesine and Ruby Optic Character

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

Compare Red Gemstones

Andesine Vs Aragonite

Andesine Vs Astrophyllite

Andesine Vs Black Opal

Andesine and Ruby Transparency

Similar to their colors, Andesine and Ruby 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, Andesine is Transparent, Translucent and Transparent to translucent while Andesine is Transparent, Translucent and Transparent to translucent in appearance.