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Amblygonite
Amblygonite

Cryolite
Cryolite



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Amblygonite
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Cryolite

Amblygonite and Cryolite Optical Properties

Optical Properties

Luster

Vitreous, Pearly
Vitreous, Greasy, Pearly

Pleochroism

weak to none
colorless.

Dispersion

0.010.01
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.578-1.6461.338-1.339
1 3.25
👆🏻

Optic Character

Biaxial/+
-

Crystal System

Triclinic
monoclinic

Birefringence

0.020-0.0300.001
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
TransparentUlrich Henn and Claudio C. Milisenda

Amblygonite and Cryolite Optic Character

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

Similar to their colors, Amblygonite and Cryolite 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.