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Prase
Prase

Amblygonite
Amblygonite



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Prase
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Amblygonite

Prase and Amblygonite Optical Properties

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Optical Properties

Luster

-
Vitreous, Pearly

Pleochroism

-
weak to none

Dispersion

0.010.01
0.005 1
👆🏻

Transparency

Transparent, Translucent
-

Refractive Index

1.544-1.5531.578-1.646
1 3.25
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Optic Character

-
Biaxial/+

Crystal System

-
Triclinic

Birefringence

0.0090.020-0.030
0 0.296
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Clarity

Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Prase and Amblygonite Optic Character

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

Prase and Amblygonite Transparency

Similar to their colors, Prase 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, Prase is Transparent and Translucent while Prase is Transparent and Translucent in appearance.