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Celestine
Celestine

Euclase
Euclase



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Celestine
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Euclase

Celestine and Euclase Optical Properties

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Optical Properties

Luster

Vitreous, Pearly
Vitreous

Pleochroism

Weakly trichroiC
Weak: colorless-(greenish) yellow

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.619-1.6351.650-1.677
1 3.25
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Optic Character

-
-

Crystal System

Orthorhombic
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a

Birefringence

0.004-0.0120.019-0.025
0 0.296
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Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Celestine and Euclase Optic Character

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

Similar to their colors, Celestine and Euclase 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.