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Sogdianite and Rosasite Optical Properties


Rosasite and Sogdianite Optical Properties


Optical Properties

Luster
Not Available   
Silky, Vitreous   

Pleochroism
Not Available   
Strong: X = pale emerald green or colourless; Y = dark emerald green or pale blue; Z = dark emerald green or pale blue   

Dispersion
Not Available   
Not Available   

Transparency
Gemmological Tables (2004) More from other references   
Not Available   

Refractive Index
1.606-1.608   
1.672-1.688   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
monoclinic   

Birefringence
0.002   
0.139-0.143   

Clarity
OpaqueUlrich Henn and Claudio C. Milisenda   
Not Available   

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Sogdianite and Rosasite Optic Character

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

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

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