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Nephrite
Nephrite

Pyrope Almandine
Pyrope Almandine



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Nephrite
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Pyrope Almandine

Nephrite and Pyrope Almandine Optical Properties

Optical Properties

Luster

Vitreous, Greasy
-

Pleochroism

None
-

Dispersion

0.010.02
0.005 1
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Transparency

Translucent
TransparentGemdat.org

Refractive Index

1.600-1.6271.73-1.77
1 3.25
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Optic Character

-
-

Crystal System

monoclinic
-

Birefringence

0.027-9999
0 0.296
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Clarity

Translucent
TransparentGemdat.org

Nephrite and Pyrope Almandine Optic Character

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

Nephrite and Pyrope Almandine Transparency

Similar to their colors, Nephrite 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, Nephrite is Translucent while Nephrite is Translucent in appearance.