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Pietersite
Pietersite

Eudialyte
Eudialyte



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Pietersite
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Eudialyte

Pietersite and Eudialyte Optical Properties

Optical Properties

Luster

-
Vitreous

Pleochroism

-
Weak: O= colorless

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

-
Translucent

Refractive Index

1.54-1.561.591-1.633
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
Trigonal

Birefringence

-99990.003-0.010
0 0.296
👆🏻

Clarity

-
Translucent

Pietersite and Eudialyte Optic Character

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

Pietersite and Eudialyte Transparency

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