Diamond and Cinnabar Optical Properties

Diamond

Cinnabar

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1 Optical Properties

1.1 Luster

Adamantine

1.2 Pleochroism

None

NilArthur Thomas

1.3 Dispersion

0.04NA

0.007 1

1.4 Transparency

Transparent, Translucent, Transparent to opaque

Translucent

1.5 Refractive Index

2.417-2.4192.905-3.25

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

cubic

Trigonal

1.8 Birefringence

Not AvailableNot Available

0 0.296

1.9 Clarity

Transparent

Translucent

Diamond and Cinnabar Optic Character

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

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Diamond and Cinnabar Transparency

Similar to their colors, Diamond 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, Diamond is Translucent, Transparent and Transparent to opaque while Diamond is Translucent, Transparent and Transparent to opaque in appearance.