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Zektzerite
Zektzerite

Bastnasite
Bastnasite



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Zektzerite
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Bastnasite

Zektzerite and Bastnasite Optical Properties

Optical Properties

Luster

Vitreous, Pearly
Vitreous, Greasy, Pearly

Pleochroism

-
Faint

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

1.582-1.5851.717-1.722
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
Hexagonal

Birefringence

0.0030.100
0 0.296
👆🏻

Clarity

Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Zektzerite and Bastnasite Optic Character

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

Zektzerite and Bastnasite Transparency

Similar to their colors, Zektzerite and Bastnasite 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, Zektzerite is Transparent while Zektzerite is Transparent in appearance.