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Pyrite
Pyrite

Prasiolite
Prasiolite



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Pyrite
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Prasiolite

Pyrite and Prasiolite Optical Properties

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Optical Properties

Luster

-
Vitreous

Pleochroism

-
Very weak: light green pale greenWalter Schumann

Dispersion

0.040.01
0.005 1
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Transparency

OpaqueHerve Nicolas Lazzarelli
Transparent, Translucent

Refractive Index

-99991.544-1.553
1 3.25
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Optic Character

-
-

Crystal System

Isometric
Trigonal

Birefringence

-99990.009
0 0.296
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Clarity

OpaqueHerve Nicolas Lazzarelli
Transparent

Pyrite and Prasiolite Optic Character

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

Pyrite and Prasiolite Transparency

Similar to their colors, Pyrite and Prasiolite 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, Pyrite is OpaqueHerve Nicolas Lazzarelli while Pyrite is OpaqueHerve Nicolas Lazzarelli in appearance.