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Spinel
Spinel

Sodalite
Sodalite



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Spinel
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Sodalite

Spinel and Sodalite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous
Greasy
1.2 Pleochroism
Absent
AbsentWalter Schumann
1.3 Dispersion
Albite Optical ..
0.02
Rank: 18 (Overall)
0.02
Rank: 21 (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparent, Translucent, Transparent to translucent
Transparent, Translucent, Opaque
1.5 Refractive Index
1.73
1.478-1.488
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Isometric
cubic
1.8 Birefringence
Not Available
Not Available
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent

Spinel and Sodalite Optic Character

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

Spinel and Sodalite Transparency

Similar to their colors, Spinel 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, Spinel is Translucent, Transparent and Transparent to translucent while Spinel is Translucent, Transparent and Transparent to translucent in appearance.

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