×

Prasiolite
Prasiolite

Phosgenite
Phosgenite



ADD
Compare
X
Prasiolite
X
Phosgenite

Prasiolite and Phosgenite Optical Properties

Optical Properties

Luster

Vitreous
Adamantine

Pleochroism

Very weak: light green pale greenWalter Schumann
Weakly pleochroic with O reddish and E greenish in thick sections.

Dispersion

0.010.04
0.005 1
👆🏻

Transparency

Transparent, Translucent
-

Refractive Index

1.544-1.5532.117-2.145
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
tetragonal

Birefringence

0.0090.027
0 0.296
👆🏻

Clarity

Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Prasiolite and Phosgenite Optic Character

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

Prasiolite and Phosgenite Transparency

Similar to their colors, Prasiolite 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, Prasiolite is Transparent and Translucent while Prasiolite is Transparent and Translucent in appearance.