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Bastnsite
Bastnsite

Scheelite
Scheelite



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Bastnsite
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Scheelite

Bastnsite and Scheelite Optical Properties

Optical Properties

Luster

-
Vitreous, Adamantine

Pleochroism

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

Dispersion

0.020.04
0.005 1
👆🏻

Transparency

-
Translucent, Transparent

Refractive Index

1.72-1.821.918-1.936
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
tetragonal

Birefringence

-99990.016
0 0.296
👆🏻

Clarity

-
Translucent

Bastnsite and Scheelite Optic Character

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

Bastnsite and Scheelite Transparency

Similar to their colors, Bastnsite 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, Bastnsite is while Bastnsite is in appearance.