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Cymophane
Cymophane

Hematite
Hematite



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Cymophane
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Hematite

Cymophane and Hematite Optical Properties

Optical Properties

Luster

-
-

Pleochroism

-
O = brownish red; E = yellowish red

Dispersion

0.010.05
0.005 1
👆🏻

Transparency

Transparent
OpaqueHerve Nicolas Lazzarelli

Refractive Index

1.739-1.7702.690-3.220
1 3.25
👆🏻

Optic Character

Biaxial/+
-

Crystal System

-
Trigonal

Birefringence

0.007-0.0130.280
0 0.296
👆🏻

Clarity

Transparent
OpaqueHerve Nicolas Lazzarelli

Cymophane and Hematite Optic Character

Cymophane and Hematite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Cymophane and Hematite 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 Cymophane and Hematite 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. Cymophane has Biaxial/+ character.

Cymophane and Hematite Transparency

Similar to their colors, Cymophane and Hematite 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, Cymophane is Transparent while Cymophane is Transparent in appearance.