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Jet
Jet

Sunstone
Sunstone



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Jet
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Sunstone

Jet and Sunstone Optical Properties

Jet
Jet
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Optical Properties

Luster

Waxy
Vitreous

Pleochroism

-
Weak or absentWalter Schumann

Dispersion

0.010.01
0.005 1
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Transparency

-
Transparent, Translucent, Transparent to translucent

Refractive Index

1.640-1.6801.53-1.55
1 3.25
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Optic Character

-
-

Crystal System

-
Triclinic

Birefringence

-99990.007-0.010
0 0.296
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Clarity

-
Transparent to translucent

Jet and Sunstone Optic Character

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

Jet and Sunstone Transparency

Similar to their colors, Jet and Sunstone 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, Jet is while Jet is in appearance.