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Datolite
Datolite

Eudialyte
Eudialyte



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Datolite
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Eudialyte

Datolite and Eudialyte Optical Properties

Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

-
Weak: O= colorless

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

Transparent
Translucent

Refractive Index

1.621-1.6751.591-1.633
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
Trigonal

Birefringence

0.0440.003-0.010
0 0.296
👆🏻

Clarity

Transparent
Translucent

Datolite and Eudialyte Optic Character

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

Datolite and Eudialyte Transparency

Similar to their colors, Datolite 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, Datolite is Transparent while Datolite is Transparent in appearance.