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Rubellite and Pyrope Almandine Optical Properties


Pyrope Almandine and Rubellite Optical Properties


Optical Properties

Luster
Not Available   
Not Available   

Pleochroism
Strong: dark red pinkish-redHerve Nicolas Lazzarelli   
AbsentWalter Schumann   

Dispersion
0.02   
22
0.02   
16

Transparency
Transparent, Translucent   
TransparentGemdat.org, Management Team (2012)   

Refractive Index
1.614-1.666   
1.73-1.77   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
Not Available   

Birefringence
0.014-0.040   
Not Available   

Clarity
Transparent   
TransparentGemdat.org   

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Rubellite and Pyrope Almandine Optic Character

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

Similar to their colors, Rubellite and Pyrope Almandine 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, Rubellite is Translucent and Transparent while Rubellite is Translucent and Transparent in appearance.

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