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Antigorite
Antigorite

Cinnabar
Cinnabar



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Antigorite
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Cinnabar

Antigorite and Cinnabar Optical Properties

1 Optical Properties
1.1 Luster
Waxy, Silky, Resinous, Greasy
Adamantine
1.2 Pleochroism
pale greenish yellow.
NilArthur Thomas
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Translucent
1.5 Refractive Index
1.530-1.5752.905-3.25
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Monoclinic Domatic H-M Symbol (m) Space Group: Cm
Trigonal
1.8 Birefringence
Not AvailableNot Available
Achroite
0 0.296
1.9 Clarity
Translucent
Translucent

Antigorite and Cinnabar Optic Character

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

Antigorite and Cinnabar Transparency

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