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Jasper
Jasper

Emerald
Emerald



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Jasper
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Emerald

Jasper and Emerald Optical Properties

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Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

-
Strong dichroism: yellow green Lazzarelli

Dispersion

0.010.01
0.005 1
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Transparency

Opaque
Transparent, Translucent, Transparent to translucent

Refractive Index

1.5401.565-1.602
1 3.25
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Optic Character

-
-

Crystal System

Trigonal
Hexagonal

Birefringence

-99990.0040-0.0070
0 0.296
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Clarity

OpaqueHerve Nicolas Lazzarelli
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Jasper and Emerald Optic Character

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

Jasper and Emerald Transparency

Similar to their colors, Jasper 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, Jasper is Opaque while Jasper is Opaque in appearance.