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Cavansite
Cavansite

Dioptase
Dioptase



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Cavansite
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Dioptase

Cavansite and Dioptase Optical Properties

Optical Properties

Luster

Vitreous, Pearly
Vitreous

Pleochroism

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

Dispersion

0.040.04
0.005 1
👆🏻

Transparency

-
TranslucentHerve Nicolas Lazzarelli

Refractive Index

1.5421.644-1.720
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
Trigonal

Birefringence

0.0090.051-0.053
0 0.296
👆🏻

Clarity

-
TranslucentHerve Nicolas Lazzarelli

Cavansite and Dioptase Optic Character

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

Similar to their colors, Cavansite and Dioptase 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.