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Zinnwaldite and Aegirine Optical Properties


Aegirine and Zinnwaldite Optical Properties


Optical Properties

Luster
Pearly, Vitreous   
Vitreous, Resinous   

Pleochroism
Distinct   
X = emerald green   

Dispersion
Not Available   
Not Available   

Transparency
Not Available   
Gemmological Tables (2004) More from other references   

Refractive Index
1.565-1.625   
1.720-1.778   

Optic Character
Not Available   
Not Available   

Crystal System
monoclinic   
monoclinic   

Birefringence
0.040-0.050   
0.037-0.061   

Clarity
Not Available   
Gemmological Tables (2004) More from other references   

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<< Physical Properties

Zinnwaldite and Aegirine Optic Character

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

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Zinnwaldite and Aegirine Transparency

Similar to their colors, Zinnwaldite and Aegirine 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, Zinnwaldite is Not Available while Zinnwaldite is Not Available in appearance.

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