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Zincite
Zincite

Phosgenite
Phosgenite



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Zincite
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Phosgenite

Zincite and Phosgenite Optical Properties

Optical Properties

Luster

Subadamantine, Resinous
Adamantine

Pleochroism

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

Dispersion

0.160.04
0.005 1
👆🏻

Transparency

TransparentRobert C. Kammerling
-

Refractive Index

2.013-2.0292.117-2.145
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Hexagonal
tetragonal

Birefringence

0.0160.027
0 0.296
👆🏻

Clarity

TransparentRobert C. Kammerling
TransparentUlrich Henn and Claudio C. Milisenda

Zincite and Phosgenite Optic Character

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

Zincite and Phosgenite Transparency

Similar to their colors, Zincite 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, Zincite is TransparentRobert C. Kammerling while Zincite is TransparentRobert C. Kammerling in appearance.