Andesine and Chrysoberyl Optical Properties

Andesine

Chrysoberyl

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1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

colorless.

X = red; Y = yellow-orange; Z = emerald-green

1.3 Dispersion

0.700.02

0.007 1

1.4 Transparency

Transparent, Translucent, Transparent to translucent

1.5 Refractive Index

1.543-1.5641.746-1.763

1 3.25

1.6 Optic Character

Biaxial/+

1.7 Crystal System

Triclinic

Orthorhombic

1.8 Birefringence

0.007-0.0110.007-0.013

0 0.296

1.9 Clarity

Transparent

Andesine and Chrysoberyl Optic Character

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

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Andesine and Chrysoberyl Transparency

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