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Aegirine
Aegirine

Zoisite
Zoisite



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X
Aegirine
X
Zoisite

Aegirine and Zoisite Optical Properties

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Optical Properties

Luster

Vitreous, Resinous
Vitreous

Pleochroism

Emerald green
X = pale pink to red-violet; Y = nearly colorless to bright pink or deep blue; Z = pale yellow to yellow-green

Dispersion

0.010.02
0.005 1
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Transparency

-
Transparent, Translucent, Opaque . May be translucent in thin backlit sections.

Refractive Index

1.720-1.7781.685-1.707
1 3.25
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Optic Character

-
-

Crystal System

monoclinic
Orthorhombic

Birefringence

0.037-0.0610.006-0.018
0 0.296
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Clarity

-
Transparent

Aegirine and Zoisite Optic Character

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

Similar to their colors, Aegirine and Zoisite 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.