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Austinite
Austinite

Amblygonite
Amblygonite



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Austinite
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Amblygonite

Austinite and Amblygonite Optical Properties

Optical Properties

Luster

Subadamantine, Silky
Vitreous, Pearly

Pleochroism

-
weak to none

Dispersion

0.030.01
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.7591.578-1.646
1 3.25
👆🏻

Optic Character

-
Biaxial/+

Crystal System

Orthorhombic
Triclinic

Birefringence

0.0240.020-0.030
0 0.296
👆🏻

Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Austinite and Amblygonite Optic Character

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

Austinite and Amblygonite Transparency

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