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Elbaite
Elbaite

Jacobsite
Jacobsite



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Elbaite
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Jacobsite

Elbaite and Jacobsite Optical Properties

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Optical Properties

Luster

Vitreous
-

Pleochroism

Pale green
-

Dispersion

0.020.03
0.005 1
👆🏻

Transparency

Transparent
Translucent

Refractive Index

1.614-1.666-9999
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
-

Birefringence

0.014-0.032-9999
0 0.296
👆🏻

Clarity

Transparent
Translucent

Elbaite and Jacobsite Optic Character

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

Similar to their colors, Elbaite and Jacobsite 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.