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Zircon
Zircon

Phosgenite
Phosgenite



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Zircon
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Phosgenite

Zircon and Phosgenite Optical Properties

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Optical Properties

Luster

Adamantine
Adamantine

Pleochroism

Weak
Weakly pleochroic with O reddish and E greenish in thick sections.

Dispersion

0.040.04
0.005 1
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Transparency

Transparent
-

Refractive Index

1.810-2.0242.117-2.145
1 3.25
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Optic Character

-
-

Crystal System

tetragonal
tetragonal

Birefringence

0.047-0.0550.027
0 0.296
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Clarity

Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Zircon and Phosgenite Optic Character

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

Similar to their colors, Zircon and Phosgenite 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.