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Elbaite
Elbaite

Feldspar
Feldspar



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Elbaite
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Feldspar

Elbaite and Feldspar Optical Properties

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Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

Pale green
None

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

Transparent
Transparent, Translucent

Refractive Index

1.614-1.6661.518-1.570
1 3.25
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Optic Character

-
-

Crystal System

Trigonal
Triclinic or monoclinic

Birefringence

0.014-0.0320.008-0.010
0 0.296
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Clarity

Transparent
Transparent

Elbaite and Feldspar Optic Character

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

Similar to their colors, Elbaite and Feldspar 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.