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Sodalite
Sodalite

Annabergite
Annabergite



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Sodalite
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Annabergite

Sodalite and Annabergite Optical Properties

1 Optical Properties
1.1 Luster
Greasy
Subadamantine, Pearly
1.2 Pleochroism
AbsentWalter Schumann
Not Available
1.3 Dispersion
0.02NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent, Opaque
Not Available
1.5 Refractive Index
1.478-1.4881.622
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
cubic
monoclinic
1.8 Birefringence
Not Available0.065
Achroite
0 0.296
1.9 Clarity
Transparent
Not Available

Sodalite and Annabergite Optic Character

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

Sodalite and Annabergite Transparency

Similar to their colors, Sodalite and Annabergite 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.