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Dioptase
Dioptase

Cavansite
Cavansite



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Dioptase
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Cavansite

Dioptase and Cavansite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous, Pearly

Pleochroism

Weak; dark emerald green
Visible: X=Z= colorless Y= blue

Dispersion

0.040.04
0.005 1
👆🏻

Transparency

TranslucentHerve Nicolas Lazzarelli
-

Refractive Index

1.644-1.7201.542
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
Orthorhombic

Birefringence

0.051-0.0530.009
0 0.296
👆🏻

Clarity

TranslucentHerve Nicolas Lazzarelli
-

Dioptase and Cavansite Optic Character

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

Dioptase and Cavansite Transparency

Similar to their colors, Dioptase and Cavansite 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, Dioptase is TranslucentHerve Nicolas Lazzarelli while Dioptase is TranslucentHerve Nicolas Lazzarelli in appearance.