Emerald and Geodes Optical Properties

Emerald

Geodes

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Optical Properties

Luster

Vitreous

Pleochroism

Strong dichroism: yellow green Lazzarelli

Dispersion

0.010.01

0.005 1

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Transparency

Transparent, Translucent, Transparent to translucent

Refractive Index

1.565-1.602-9999

1 3.25

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Optic Character

Crystal System

Hexagonal

Birefringence

0.0040-0.0070-9999

0 0.296

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Clarity

Emerald and Geodes Optic Character

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

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Emerald and Geodes Transparency

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