Sodalite and Pyrite Optical Properties

Sodalite

Pyrite

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1 Optical Properties

1.1 Luster

Greasy

Not Available

1.2 Pleochroism

AbsentWalter Schumann

Not Available

1.3 Dispersion

0.02None

0.007 1

1.4 Transparency

Transparent, Translucent, Opaque

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

1.5 Refractive Index

1.478-1.488Not Available

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

cubic

Isometric

1.8 Birefringence

Not AvailableNot Available

0 0.296

1.9 Clarity

Transparent

OpaqueHerve Nicolas Lazzarelli

Sodalite and Pyrite Optic Character

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

Similar to their colors, Sodalite 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, Sodalite is Opaque, Translucent and Transparent while Sodalite is Opaque, Translucent and Transparent in appearance.