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Jadeite
Jadeite

Willemite
Willemite



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Jadeite
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Willemite

Jadeite and Willemite Optical Properties

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Optical Properties

Luster

Pearly
Vitreous, Resinous

Pleochroism

-
-

Dispersion

0.010.17
0.005 1
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Transparency

Translucent
Transparent, Translucent

Refractive Index

1.652-1.6881.687-1.723
1 3.25
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Optic Character

-
-

Crystal System

monoclinic
Trigonal

Birefringence

0.013-0.0200.028-0.030
0 0.296
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Clarity

Translucent
Transparent

Jadeite and Willemite Optic Character

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

Jadeite and Willemite Transparency

Similar to their colors, Jadeite and Willemite 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, Jadeite is Translucent while Jadeite is Translucent in appearance.