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Celestine
Celestine

Phosgenite
Phosgenite



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Celestine
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Phosgenite

Celestine and Phosgenite Optical Properties

Optical Properties

Luster

Vitreous, Pearly
Adamantine

Pleochroism

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

Dispersion

0.010.04
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.619-1.6352.117-2.145
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
tetragonal

Birefringence

0.004-0.0120.027
0 0.296
👆🏻

Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Celestine and Phosgenite Optic Character

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

Celestine and Phosgenite Transparency

Similar to their colors, Celestine 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, Celestine is while Celestine is in appearance.