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Zircon
Zircon

Phenakite
Phenakite



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Phenakite

Zircon and Phenakite Optical Properties

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Optical Properties

Luster

Adamantine
Vitreous

Pleochroism

Weak
Distinct: colorless orangy-yellowHerve Nicolas Lazzarelli

Dispersion

0.040.02
0.005 1
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Transparency

Transparent
-

Refractive Index

1.810-2.0241.650-1.695
1 3.25
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Optic Character

-
-

Crystal System

tetragonal
Trigonal

Birefringence

0.047-0.0550.016
0 0.296
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Clarity

Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Zircon and Phenakite Optic Character

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

Zircon and Phenakite Transparency

Similar to their colors, Zircon and Phenakite 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, Zircon is Transparent while Zircon is Transparent in appearance.