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Charoite
Charoite

Euclase
Euclase



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Charoite
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Euclase

Charoite and Euclase Optical Properties

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Optical Properties

Luster

Pearly, Chatoyant
Vitreous

Pleochroism

-
Weak: colorless-(greenish) yellow

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

Translucent
-

Refractive Index

1.545-1.5601.650-1.677
1 3.25
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Optic Character

-
-

Crystal System

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

Birefringence

0.0090.019-0.025
0 0.296
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Clarity

Translucent
TransparentUlrich Henn and Claudio C. Milisenda

Charoite and Euclase Optic Character

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

Charoite and Euclase Transparency

Similar to their colors, Charoite 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, Charoite is Translucent while Charoite is Translucent in appearance.