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Willemite
Willemite

Langbeinite
Langbeinite



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Willemite
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Langbeinite

Willemite and Langbeinite Optical Properties

Optical Properties

Luster

Vitreous, Resinous
Vitreous

Pleochroism

-
-

Dispersion

0.17-
0.005 1
👆🏻

Transparency

Transparent, Translucent
-

Refractive Index

1.687-1.7231.5329-1.5347
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
cubic

Birefringence

0.028-0.030-9999
0 0.296
👆🏻

Clarity

Transparent
-

Willemite and Langbeinite Optic Character

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

Similar to their colors, Willemite and Langbeinite 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.