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Scheelite
Scheelite

Ludlamite
Ludlamite



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Scheelite
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Ludlamite

Scheelite and Ludlamite Optical Properties

Optical Properties

Luster

Vitreous, Adamantine
Vitreous, Pearly

Pleochroism

Definite dichoric in yellow (yellow to orange-brown)
-

Dispersion

0.040.02
0.005 1
👆🏻

Transparency

Translucent, Transparent
-

Refractive Index

1.918-1.9361.653-1.693
1 3.25
👆🏻

Optic Character

-
-

Crystal System

tetragonal
monoclinic

Birefringence

0.0160.038-0.044
0 0.296
👆🏻

Clarity

Translucent
TransparentUlrich Henn and Claudio C. Milisenda

Scheelite and Ludlamite Optic Character

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

Scheelite and Ludlamite Transparency

Similar to their colors, Scheelite and Ludlamite 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, Scheelite is Translucent and Transparent while Scheelite is Translucent and Transparent in appearance.