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Euclase
Euclase

White Opal
White Opal



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Euclase
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White Opal

Euclase and White Opal Optical Properties

Optical Properties

Luster

Vitreous
-

Pleochroism

Weak: colorless-(greenish) yellow
-

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

-
Translucent

Refractive Index

1.650-1.6771.37-1.52
1 3.25
👆🏻

Optic Character

-
-

Crystal System

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

Birefringence

0.019-0.025-9999
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Translucent

Euclase and White Opal Optic Character

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

Euclase and White Opal Transparency

Similar to their colors, Euclase and White Opal 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, Euclase is while Euclase is in appearance.