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Cavansite
Cavansite

Marcasite
Marcasite



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Cavansite
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Marcasite

Cavansite and Marcasite Optical Properties

Optical Properties

Luster

Vitreous, Pearly
-

Pleochroism

Visible: X=Z= colorless Y= blue
-

Dispersion

0.040.05
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.542-9999
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
-

Birefringence

0.009-9999
0 0.296
👆🏻

Clarity

-
-

Cavansite and Marcasite Optic Character

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

Cavansite and Marcasite Transparency

Similar to their colors, Cavansite and Marcasite 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, Cavansite is while Cavansite is in appearance.