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Scheelite
Scheelite

Cinnabar
Cinnabar



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Scheelite
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Cinnabar

Scheelite and Cinnabar Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Adamantine
Adamantine
1.2 Pleochroism
Definite dichoric in yellow (yellow to orange-brown)
NilArthur Thomas
1.3 Dispersion
0.04NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent, Transparent
Translucent
1.5 Refractive Index
1.918-1.9362.905-3.25
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
tetragonal
Trigonal
1.8 Birefringence
0.016Not Available
Achroite
0 0.296
1.9 Clarity
Translucent
Translucent

Scheelite and Cinnabar Optic Character

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

Similar to their colors, Scheelite and Cinnabar 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.