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Opal and Pyrope Almandine Optical Properties


Pyrope Almandine and Opal Optical Properties


Optical Properties

Luster
Vitreous, Pearly   
Not Available   

Pleochroism
None   
AbsentWalter Schumann   

Dispersion
None   
0.02   
16

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

Refractive Index
1.37-1.52   
1.73-1.77   

Optic Character
Not Available   
Not Available   

Crystal System
Trigonal   
Not Available   

Birefringence
Not Available   
Not Available   

Clarity
Transparent   
TransparentGemdat.org   

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Opal and Pyrope Almandine Optic Character

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

Similar to their colors, Opal 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, Opal is Translucent, Transparent and Transparent to translucent while Opal is Translucent, Transparent and Transparent to translucent in appearance.

Semi Precious

Semi Precious


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