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Sheen Obsidian and Friedelite Optical Properties


Friedelite and Sheen Obsidian Optical Properties


Optical Properties

Luster
Not Available   
Not Available   

Pleochroism
Not Available   
NilArthur Thomas   

Dispersion
Not Available   
Not Available   

Transparency
Transparent, Translucent   
Translucent   

Refractive Index
1.450-1.550   
1.627-1.663   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/m   

Birefringence
Not Available   
0.032-0.035   

Clarity
Transparent   
Translucent   

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<< Physical Properties

Sheen Obsidian and Friedelite Optic Character

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

Similar to their colors, Sheen Obsidian and Friedelite 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, Sheen Obsidian is Translucent and Transparent while Sheen Obsidian is Translucent and Transparent in appearance.

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