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Amblygonite
Amblygonite

Cavansite
Cavansite



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Amblygonite
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Cavansite

Amblygonite and Cavansite Optical Properties

Optical Properties

Luster

Vitreous, Pearly
Vitreous, Pearly

Pleochroism

weak to none
Visible: X=Z= colorless Y= blue

Dispersion

0.010.04
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.578-1.6461.542
1 3.25
👆🏻

Optic Character

Biaxial/+
-

Crystal System

Triclinic
Orthorhombic

Birefringence

0.020-0.0300.009
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
-

Amblygonite and Cavansite Optic Character

Amblygonite and Cavansite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Amblygonite 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 Amblygonite 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. Amblygonite has Biaxial/+ character.

Amblygonite and Cavansite Transparency

Similar to their colors, Amblygonite 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, Amblygonite is while Amblygonite is in appearance.