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Marcasite
Marcasite

Verdite
Verdite



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Marcasite
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Verdite

Marcasite and Verdite Optical Properties

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1 Optical Properties
1.1 Luster
Not Available
Vitreous, Silky
1.2 Pleochroism
NilArthur Thomas
Extreme
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004) More from other references
Translucent
1.5 Refractive Index
Not Available1.580
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/c
1.8 Birefringence
Not AvailableNot Available
Achroite
0 0.296
1.9 Clarity
Gemmological Tables (2004) More from other references
Translucent

Marcasite and Verdite Optic Character

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

Marcasite and Verdite Transparency

Similar to their colors, Marcasite and Verdite 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.