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Jade
Jade

Feldspar
Feldspar



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Jade
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Feldspar

Jade and Feldspar Optical Properties

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Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

-
None

Dispersion

0.010.01
0.005 1
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Transparency

Translucent, Translucent to opaque
Transparent, Translucent

Refractive Index

1.600-1.6881.518-1.570
1 3.25
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Optic Character

-
-

Crystal System

monoclinic
Triclinic or monoclinic

Birefringence

0.020-0.0270.008-0.010
0 0.296
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Clarity

Translucent
Transparent

Jade and Feldspar Optic Character

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

Jade and Feldspar Transparency

Similar to their colors, Jade and Feldspar 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, Jade is Translucent and Translucent to opaque while Jade is Translucent and Translucent to opaque in appearance.