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Celestine
Celestine

Amethyst
Amethyst



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Celestine
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Amethyst

Celestine and Amethyst Optical Properties

Optical Properties

Luster

Vitreous, Pearly
Vitreous

Pleochroism

Weakly trichroiC
None

Dispersion

0.010.01
0.005 1
👆🏻

Transparency

-
Transparent, Transparent to translucent

Refractive Index

1.619-1.6351.544-1.553
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
Trigonal

Birefringence

0.004-0.0120.009
0 0.296
👆🏻

Clarity

-
Transparent

Celestine and Amethyst Optic Character

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

Similar to their colors, Celestine and Amethyst 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.