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Plasma
Plasma

Almandine
Almandine



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Plasma
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Almandine

Plasma and Almandine Optical Properties

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Optical Properties

Luster

-
Greasy, Vitreous

Pleochroism

-
None

Dispersion

0.020.03
0.005 1
👆🏻

Transparency

-
-

Refractive Index

-99991.770-1.820
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
cubic

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Plasma and Almandine Optic Character

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

Plasma and Almandine Transparency

Similar to their colors, Plasma and 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, Plasma is while Plasma is in appearance.