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Jasper
Jasper

Phosgenite
Phosgenite



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Jasper
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Phosgenite

Jasper and Phosgenite Optical Properties

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Optical Properties

Luster

Vitreous
Adamantine

Pleochroism

-
Weakly pleochroic with O reddish and E greenish in thick sections.

Dispersion

0.010.04
0.005 1
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Transparency

Opaque
-

Refractive Index

1.5402.117-2.145
1 3.25
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Optic Character

-
-

Crystal System

Trigonal
tetragonal

Birefringence

-99990.027
0 0.296
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Clarity

OpaqueHerve Nicolas Lazzarelli
TransparentUlrich Henn and Claudio C. Milisenda

Jasper and Phosgenite Optic Character

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

Similar to their colors, Jasper and Phosgenite 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.