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Amblygonite
Amblygonite

Williamsite
Williamsite



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Amblygonite
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Williamsite

Amblygonite and Williamsite Optical Properties

Optical Properties

Luster

Vitreous, Pearly
Waxy, Silky, Resinous, Greasy

Pleochroism

weak to none
-

Dispersion

0.010.03
0.005 1
👆🏻

Transparency

-
TranslucentHerve Nicolas Lazzarelli

Refractive Index

1.578-1.6461.530-1.575
1 3.25
👆🏻

Optic Character

Biaxial/+
-

Crystal System

Triclinic
-

Birefringence

0.020-0.030-9999
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
TranslucentHerve Nicolas Lazzarelli

Amblygonite and Williamsite Optic Character

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

Similar to their colors, Amblygonite and Williamsite 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.