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Aegirine
Aegirine

Amethyst
Amethyst



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Aegirine
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Amethyst

Aegirine and Amethyst Optical Properties

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Optical Properties

Luster

Vitreous, Resinous
Vitreous

Pleochroism

Emerald green
None

Dispersion

0.010.01
0.005 1
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Transparency

-
Transparent, Transparent to translucent

Refractive Index

1.720-1.7781.544-1.553
1 3.25
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Optic Character

-
-

Crystal System

monoclinic
Trigonal

Birefringence

0.037-0.0610.009
0 0.296
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Clarity

-
Transparent

Aegirine and Amethyst Optic Character

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

Aegirine and Amethyst Transparency

Similar to their colors, Aegirine and Amethyst 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, Aegirine is while Aegirine is in appearance.