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Celestine
Celestine

Almandine
Almandine



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Celestine
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Almandine

Celestine and Almandine Optical Properties

Optical Properties

Luster

Vitreous, Pearly
Greasy, Vitreous

Pleochroism

Weakly trichroiC
None

Dispersion

0.010.03
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.619-1.6351.770-1.820
1 3.25
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Optic Character

-
-

Crystal System

Orthorhombic
cubic

Birefringence

0.004-0.012-9999
0 0.296
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Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Celestine and Almandine Optic Character

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

Celestine and Almandine Transparency

Similar to their colors, Celestine 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, Celestine is while Celestine is in appearance.