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Cinnabar
Cinnabar

Monazite
Monazite



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Cinnabar
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Monazite

Cinnabar and Monazite Optical Properties

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Optical Properties

Luster

Adamantine
-

Pleochroism

-
-

Dispersion

0.060.02
0.005 1
👆🏻

Transparency

Translucent
-

Refractive Index

2.905-3.251.796-1.841
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
-

Birefringence

-99990.045
0 0.296
👆🏻

Clarity

Translucent
TransparentUlrich Henn and Claudio C. Milisenda

Cinnabar and Monazite Optic Character

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

Similar to their colors, Cinnabar and Monazite 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.