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Cinnabar
Cinnabar

Scheelite
Scheelite



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Cinnabar
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Scheelite

Cinnabar and Scheelite Optical Properties

1 Optical Properties
1.1 Luster
Adamantine
Vitreous, Adamantine
1.2 Pleochroism
NilArthur Thomas
Definite dichoric in yellow (yellow to orange-brown)
1.3 Dispersion
NA0.04
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Translucent, Transparent
1.5 Refractive Index
2.905-3.251.918-1.936
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
tetragonal
1.8 Birefringence
Not Available0.016
Achroite
0 0.296
1.9 Clarity
Translucent
Translucent

Cinnabar and Scheelite Optic Character

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

Cinnabar and Scheelite Transparency

Similar to their colors, Cinnabar 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, Cinnabar is Translucent while Cinnabar is Translucent in appearance.