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Cinnabar
Cinnabar

Periclase
Periclase



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Cinnabar
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Periclase

Cinnabar and Periclase Optical Properties

1 Optical Properties
1.1 Luster
Adamantine
Vitreous
1.2 Pleochroism
NilArthur Thomas
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
TransparentWalter Schumann, Gemstones of the world (2001) More from other references
1.5 Refractive Index
2.905-3.251.735-1.738
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Isometric
1.8 Birefringence
Not AvailableNot Available
Achroite
0 0.296
1.9 Clarity
Translucent
TransparentWalter Schumann

Cinnabar and Periclase Optic Character

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

Similar to their colors, Cinnabar and Periclase 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.