Elbaite and Scheelite Optical Properties

Elbaite

Scheelite

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1 Optical Properties

1.1 Luster

Vitreous

Vitreous, Adamantine

1.2 Pleochroism

Pale green

Definite dichoric in yellow (yellow to orange-brown)

1.3 Dispersion

0.020.04

0.007 1

1.4 Transparency

Transparent

Translucent, Transparent

1.5 Refractive Index

1.614-1.6661.918-1.936

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Trigonal

tetragonal

1.8 Birefringence

0.014-0.0320.016

0 0.296

1.9 Clarity

Transparent

Translucent

Elbaite and Scheelite Optic Character

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

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Elbaite and Scheelite Transparency

Similar to their colors, Elbaite and Scheelite 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.