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Pyrite Marcasite
Pyrite Marcasite

Topaz
Topaz



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Pyrite Marcasite
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Topaz

Pyrite Marcasite and Topaz Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Vitreous
1.2 Pleochroism
Not Available
Weak
1.3 Dispersion
NA0.01
Fluorite Optical Properties
0.007 1
1.4 Transparency
Opaque
Transparent
1.5 Refractive Index
Not Available1.606-1.644
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Isometric
Orthorhombic
1.8 Birefringence
Not Available0.008-0.011
Achroite
0 0.296
1.9 Clarity
Opaque
TransparentUlrich Henn and Claudio C. Milisenda

Pyrite Marcasite and Topaz Optic Character

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

Similar to their colors, Pyrite Marcasite and Topaz 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 Marcasite is Opaque while Pyrite Marcasite is Opaque in appearance.