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Willemite
Willemite

Amber
Amber



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Willemite
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Amber

Willemite and Amber Optical Properties

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Optical Properties

Luster

Vitreous, Resinous
Resinous

Pleochroism

-
-

Dispersion

0.170.01
0.005 1
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Transparency

Transparent, Translucent
Transparent, Translucent

Refractive Index

1.687-1.7231.539-1.545
1 3.25
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Optic Character

-
-

Crystal System

Trigonal
-

Birefringence

0.028-0.030-9999
0 0.296
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Clarity

Transparent
Transparent

Willemite and Amber Optic Character

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

Willemite and Amber Transparency

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