Riebeckite and Pyrite Optical Properties

Riebeckite

Pyrite

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1 Optical Properties

1.1 Luster

Vitreous, Silky

Not Available

1.2 Pleochroism

X = blue

Not Available

1.3 Dispersion

NANone

0.007 1

1.4 Transparency

Not Available

OpaqueHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references

1.5 Refractive Index

1.680-1.698Not Available

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

monoclinic

Isometric

1.8 Birefringence

0.005-0.008Not Available

0 0.296

1.9 Clarity

Not Available

OpaqueHerve Nicolas Lazzarelli

Riebeckite and Pyrite Optic Character

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

Similar to their colors, Riebeckite and Pyrite 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, Riebeckite is Not Available while Riebeckite is Not Available in appearance.