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Euclase

Sodalite
Sodalite



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Euclase and Sodalite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous
Greasy
1.2 Pleochroism
Weak: colorless-(greenish) yellow
AbsentWalter Schumann
1.3 Dispersion
Albite Optical ..
0.02
Rank: 23 (Overall)
0.02
Rank: 21 (Overall)
Fluorite Optical Properties
1.4 Transparency
Gemmological Tables (2004) More from other references
Transparent, Translucent, Opaque
1.5 Refractive Index
1.650-1.677
1.478-1.488
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a
cubic
1.8 Birefringence
0.019-0.025
Not Available
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent

Euclase and Sodalite Optic Character

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

Euclase and Sodalite Transparency

Similar to their colors, Euclase 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, Euclase is Gemmological Tables (2004) More from other references while Euclase is Gemmological Tables (2004) More from other references in appearance.