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Pleonaste
Pleonaste

Pyrophyllite
Pyrophyllite



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Pleonaste
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Pyrophyllite

Pleonaste and Pyrophyllite Optical Properties

Optical Properties

Luster

-
Pearly

Pleochroism

-
-

Dispersion

0.030.05
0.005 1
👆🏻

Transparency

-
Translucent

Refractive Index

1.7801.534-1.601
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
-

Birefringence

-99990.050
0 0.296
👆🏻

Clarity

-
Translucent

Pleonaste and Pyrophyllite Optic Character

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

Pleonaste and Pyrophyllite Transparency

Similar to their colors, Pleonaste and Pyrophyllite 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, Pleonaste is while Pleonaste is in appearance.