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Elbaite
Elbaite

Zinnwaldite
Zinnwaldite



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Elbaite
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Zinnwaldite

Elbaite and Zinnwaldite Optical Properties

Optical Properties

Luster

Vitreous
Pearly, Vitreous

Pleochroism

Pale green
Distinct

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

1.614-1.6661.565-1.625
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
monoclinic

Birefringence

0.014-0.0320.040-0.050
0 0.296
👆🏻

Clarity

Transparent
-

Elbaite and Zinnwaldite Optic Character

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

Elbaite and Zinnwaldite Transparency

Similar to their colors, Elbaite and Zinnwaldite 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, Elbaite is Transparent while Elbaite is Transparent in appearance.