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Hurlbutite
Hurlbutite

Pyrite Marcasite
Pyrite Marcasite



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Hurlbutite
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Pyrite Marcasite

Hurlbutite and Pyrite Marcasite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Not Available
1.2 Pleochroism
Not Available
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Opaque
1.5 Refractive Index
1.595-1.604Not Available
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a
Isometric
1.8 Birefringence
0.009Not Available
Achroite
0 0.296
1.9 Clarity
Transparent
Opaque

Hurlbutite and Pyrite Marcasite Optic Character

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

Hurlbutite and Pyrite Marcasite Transparency

Similar to their colors, Hurlbutite and Pyrite Marcasite 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, Hurlbutite is Transparent while Hurlbutite is Transparent in appearance.