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Jasper
Jasper

Benitoite
Benitoite



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Jasper
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Benitoite

Jasper and Benitoite Optical Properties

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Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

-
O = colorless; E = purple

Dispersion

0.010.04
0.005 1
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Transparency

Opaque
Transparent

Refractive Index

1.5401.757-1.804
1 3.25
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Optic Character

-
-

Crystal System

Trigonal
Hexagonal

Birefringence

-99990.047
0 0.296
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Clarity

OpaqueHerve Nicolas Lazzarelli
Transparent

Jasper and Benitoite Optic Character

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

Similar to their colors, Jasper and Benitoite 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.