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Diaspore and Rubellite Optical Properties


Rubellite and Diaspore Optical Properties


Optical Properties

Luster
Pearly   
Not Available   

Pleochroism
Strong   
Strong: dark red pinkish-redHerve Nicolas Lazzarelli   

Dispersion
Not Available   
0.02   
22

Transparency
Transparent   
Transparent, Translucent   

Refractive Index
1.702-1.750   
1.614-1.666   

Optic Character
Not Available   
Not Available   

Crystal System
Orthorhombic   
Not Available   

Birefringence
0.048   
0.014-0.040   

Clarity
Transparent   
Transparent   

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<< Physical Properties

Diaspore and Rubellite Optic Character

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

Similar to their colors, Diaspore and Rubellite 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, Diaspore is Transparent while Diaspore is Transparent in appearance.

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