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Amblygonite
Amblygonite

Sunstone
Sunstone



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Amblygonite
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Sunstone

Amblygonite and Sunstone Optical Properties

Optical Properties

Luster

Vitreous, Pearly
Vitreous

Pleochroism

weak to none
Weak or absentWalter Schumann

Dispersion

0.010.01
0.005 1
👆🏻

Transparency

-
Transparent, Translucent, Transparent to translucent

Refractive Index

1.578-1.6461.53-1.55
1 3.25
👆🏻

Optic Character

Biaxial/+
-

Crystal System

Triclinic
Triclinic

Birefringence

0.020-0.0300.007-0.010
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Transparent to translucent

Amblygonite and Sunstone Optic Character

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

Similar to their colors, Amblygonite and Sunstone 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.