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Pyrope Almandine and Covellite Optical Properties


Covellite and Pyrope Almandine Optical Properties


Optical Properties

Luster
Not Available   
Resinous   

Pleochroism
AbsentWalter Schumann   
Marked   

Dispersion
0.02   
16
Not Available   

Transparency
TransparentGemdat.org, Management Team (2012)   
OpaqueAnthony et al, Handbook of mineralogy (2001) More from other references   

Refractive Index
1.73-1.77   
1.45-2.62   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
Hexagonal   

Birefringence
Not Available   
Not Available   

Clarity
TransparentGemdat.org   
OpaqueAnthony et al   

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<< Physical Properties

Pyrope Almandine and Covellite Optic Character

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

Similar to their colors, Pyrope Almandine and Covellite 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, Pyrope Almandine is Management Team (2012) and TransparentGemdat.org while Pyrope Almandine is Management Team (2012) and TransparentGemdat.org in appearance.

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