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Hureaulite
Hureaulite

Eudialyte
Eudialyte



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Hureaulite
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Eudialyte

Hureaulite and Eudialyte Optical Properties

Optical Properties

Luster

Vitreous, Greasy
Vitreous

Pleochroism

Colorless yellow to pale rose reddish yellow to reddish brown.Anthony et al
Weak: O= colorless

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

Transparent
Translucent

Refractive Index

1.647-1.6671.591-1.633
1 3.25
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Optic Character

-
-

Crystal System

Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/c
Trigonal

Birefringence

0.0120.003-0.010
0 0.296
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Clarity

Transparent
Translucent

Hureaulite and Eudialyte Optic Character

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

Hureaulite and Eudialyte Transparency

Similar to their colors, Hureaulite and Eudialyte 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, Hureaulite is Transparent while Hureaulite is Transparent in appearance.