Pyrite Marcasite and Rosasite Optical Properties

Pyrite Marcasite

Rosasite

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1 Optical Properties

1.1 Luster

Not Available

Silky, Vitreous

1.2 Pleochroism

Not Available

Strong: X = pale emerald green or colourless; Y = dark emerald green or pale blue; Z = dark emerald green or pale blue

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Opaque

Not Available

1.5 Refractive Index

Not Available1.672-1.688

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Isometric

monoclinic

1.8 Birefringence

Not Available0.139-0.143

0 0.296

1.9 Clarity

Opaque

Not Available

Pyrite Marcasite and Rosasite Optic Character

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

Similar to their colors, Pyrite Marcasite and Rosasite 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.