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Heliodor
Heliodor

Euclase
Euclase



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Heliodor
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Euclase

Heliodor and Euclase Optical Properties

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Optical Properties

Luster

-
Vitreous

Pleochroism

-
Weak: colorless-(greenish) yellow

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

-99991.650-1.677
1 3.25
👆🏻

Optic Character

-
-

Crystal System

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

Birefringence

-99990.019-0.025
0 0.296
👆🏻

Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Heliodor and Euclase Optic Character

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

Heliodor and Euclase Transparency

Similar to their colors, Heliodor 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, Heliodor is while Heliodor is in appearance.