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Beryllonite
Beryllonite

Euclase
Euclase



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Beryllonite
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Euclase

Beryllonite and Euclase Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous, Adamantine, Pearly
-
0.01
-
1.552-1.562
-
monoclinic
0.009
TransparentUlrich Henn and Claudio C. Milisenda
 
Vitreous
Weak: colorless-(greenish) yellow
0.02
-
1.650-1.677
-
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a
0.019-0.025
TransparentUlrich Henn and Claudio C. Milisenda

Beryllonite and Euclase Optic Character

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

Beryllonite and Euclase Transparency

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