Sonolite and Sodalite Optical Properties

Sonolite

Sodalite

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1 Optical Properties

1.1 Luster

Vitreous

Greasy

1.2 Pleochroism

Not Available

AbsentWalter Schumann

1.3 Dispersion

NA0.02

0.007 1

1.4 Transparency

TransparentAnthony et al, Handbook of mineralogy (2001)

Transparent, Translucent, Opaque

1.5 Refractive Index

1.763-1.7931.478-1.488

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

cubic

1.8 Birefringence

Not AvailableNot Available

0 0.296

1.9 Clarity

TransparentAnthony et al

Transparent

Sonolite and Sodalite Optic Character

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

Similar to their colors, Sonolite and Sodalite 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, Sonolite is Handbook of mineralogy (2001) and TransparentAnthony et al while Sonolite is Handbook of mineralogy (2001) and TransparentAnthony et al in appearance.