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Ulexite
Ulexite

Pargasite
Pargasite



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Ulexite
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Pargasite

Ulexite and Pargasite Optical Properties

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Optical Properties

Luster

-
Vitreous

Pleochroism

-
-

Dispersion

0.060.02
0.005 1
👆🏻

Transparency

Transparent
Transparent

Refractive Index

1.491-1.5201.613-1.663
1 3.25
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Optic Character

-
-

Crystal System

-
monoclinic

Birefringence

0.0290.020
0 0.296
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Clarity

Transparent
Transparent

Ulexite and Pargasite Optic Character

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

Ulexite and Pargasite Transparency

Similar to their colors, Ulexite and Pargasite 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, Ulexite is Transparent while Ulexite is Transparent in appearance.