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Cinnabar
Cinnabar

Anhydrite
Anhydrite



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Cinnabar
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Anhydrite

Cinnabar and Anhydrite Optical Properties

1 Optical Properties
1.1 Luster
Adamantine
Pearly, Greasy
1.2 Pleochroism
NilArthur Thomas
For violet varieties
1.3 Dispersion
NA0.01
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Transparent
1.5 Refractive Index
2.905-3.251.570-1.614
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Orthorhombic
1.8 Birefringence
Not Available0.042-0.044
Achroite
0 0.296
1.9 Clarity
Translucent
Transparent

Cinnabar and Anhydrite Optic Character

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

Similar to their colors, Cinnabar and Anhydrite 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.