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Peridot
Peridot

Celestine
Celestine



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Peridot
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Celestine

Peridot and Celestine Optical Properties

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Optical Properties

Luster

Vitreous, Greasy
Vitreous, Pearly

Pleochroism

Weak: yellow-green green (colorless)Herve Nicolas Lazzarelli
Weakly trichroiC

Dispersion

0.020.01
0.005 1
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Transparency

Transparent
-

Refractive Index

1.64-1.691.619-1.635
1 3.25
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Optic Character

-
-

Crystal System

Orthorhombic
Orthorhombic

Birefringence

0.0360.004-0.012
0 0.296
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Clarity

Transparent
-

Peridot and Celestine Optic Character

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

Peridot and Celestine Transparency

Similar to their colors, Peridot 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, Peridot is Transparent while Peridot is Transparent in appearance.