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Marcasite and Painite Optical Properties


Painite and Marcasite Optical Properties


Optical Properties

Luster
Not Available   
Not Available   

Pleochroism
NilArthur Thomas   
Strong dichroism: yellow-brown red to brown-violet (pinkish samples: nearly colorless pale orangy-pink)Herve Nicolas Lazzarelli   

Dispersion
Not Available   
Not Available   

Transparency
Gemmological Tables (2004) More from other references   
Gems   

Refractive Index
Not Available   
1.787-1.816   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
Not Available   

Birefringence
Not Available   
0.029   

Clarity
Gemmological Tables (2004) More from other references   
Gems   

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Marcasite and Painite Optic Character

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

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Marcasite and Painite Transparency

Similar to their colors, Marcasite and Painite 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, Marcasite is Gemmological Tables (2004) More from other references while Marcasite is Gemmological Tables (2004) More from other references in appearance.

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