Chrysoberyl and Emerald Optical Properties

Chrysoberyl

Emerald

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1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

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

Strong dichroism: yellow green Lazzarelli

1.3 Dispersion

Albite Optical ..

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0.02

Rank: 24 (Overall)▶

0.01

Rank: 26 (Overall)▶

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Fluorite Optical Properties

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0.044 (Anglesite Opt..)

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1.4 Transparency

Transparent, Translucent, Transparent to translucent

1.5 Refractive Index

1.746-1.763

1.565-1.602

1.6 Optic Character

Biaxial/+

Not Available

1.7 Crystal System

Orthorhombic

Hexagonal

1.8 Birefringence

0.007-0.013

0.0040-0.0070

1.9 Clarity

Transparent

Color grading system

Chrysoberyl and Emerald Optic Character

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

Compare Green Gemstones

Chrysoberyl Vs Common Opal

Chrysoberyl Vs Dallasite

Chrysoberyl Vs Datolite

Chrysoberyl and Emerald Transparency

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

Green Gemstones

Chrysoprase

Chrysotile

Clinochlore

Clinozoisite

Common Opal

Dallasite