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Prasiolite
Prasiolite

Celestine
Celestine



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Prasiolite
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Celestine

Prasiolite and Celestine Optical Properties

Optical Properties

Luster

Vitreous
Vitreous, Pearly

Pleochroism

Very weak: light green pale greenWalter Schumann
Weakly trichroiC

Dispersion

0.010.01
0.005 1
👆🏻

Transparency

Transparent, Translucent
-

Refractive Index

1.544-1.5531.619-1.635
1 3.25
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Optic Character

-
-

Crystal System

Trigonal
Orthorhombic

Birefringence

0.0090.004-0.012
0 0.296
👆🏻

Clarity

Transparent
-

Prasiolite and Celestine Optic Character

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

Prasiolite and Celestine Transparency

Similar to their colors, Prasiolite and Celestine 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, Prasiolite is Transparent and Translucent while Prasiolite is Transparent and Translucent in appearance.