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Montebrasite
Montebrasite

Cavansite
Cavansite



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Montebrasite
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Cavansite

Montebrasite and Cavansite Optical Properties

Optical Properties

Luster

-
Vitreous, Pearly

Pleochroism

-
Visible: X=Z= colorless Y= blue

Dispersion

0.020.04
0.005 1
👆🏻

Transparency

TransparentWalter Schumann
-

Refractive Index

1.578-1.6461.542
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Orthorhombic

Birefringence

0.020-0.0300.009
0 0.296
👆🏻

Clarity

TransparentWalter Schumann
-

Montebrasite and Cavansite Optic Character

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

Montebrasite and Cavansite Transparency

Similar to their colors, Montebrasite 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, Montebrasite is TransparentWalter Schumann while Montebrasite is TransparentWalter Schumann in appearance.