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Pyrite
Pyrite

Mottramite
Mottramite



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Pyrite
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Mottramite

Pyrite and Mottramite Optical Properties

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Optical Properties

Luster

-
Greasy

Pleochroism

-
Visible X=Y= canary yellow to greenish yellow

Dispersion

0.040.04
0.005 1
👆🏻

Transparency

OpaqueHerve Nicolas Lazzarelli
-

Refractive Index

-99992.170
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Isometric
Orthorhombic

Birefringence

-99990.150
0 0.296
👆🏻

Clarity

OpaqueHerve Nicolas Lazzarelli
-

Pyrite and Mottramite Optic Character

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

Similar to their colors, Pyrite and Mottramite 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.