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Cymophane
Cymophane

Mottramite
Mottramite



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Cymophane
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Mottramite

Cymophane and Mottramite Optical Properties

Optical Properties

Luster

-
Greasy

Pleochroism

-
Visible X=Y= canary yellow to greenish yellow

Dispersion

0.010.04
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

1.739-1.7702.170
1 3.25
👆🏻

Optic Character

Biaxial/+
-

Crystal System

-
Orthorhombic

Birefringence

0.007-0.0130.150
0 0.296
👆🏻

Clarity

Transparent
-

Cymophane and Mottramite Optic Character

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

Similar to their colors, Cymophane and Mottramite 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.