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Precious Opal
Precious Opal

Sodalite
Sodalite



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Precious Opal
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Sodalite

Precious Opal and Sodalite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Greasy
1.2 Pleochroism
AbsentWalter Schumann
AbsentWalter Schumann
1.3 Dispersion
None0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Transparent, Translucent, Opaque
1.5 Refractive Index
1.370-1.4701.478-1.488
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
cubic
1.8 Birefringence
Not AvailableNot Available
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Precious Opal and Sodalite Optic Character

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

Precious Opal and Sodalite Transparency

Similar to their colors, Precious Opal 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, Precious Opal is Translucent and Transparent while Precious Opal is Translucent and Transparent in appearance.