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Cuprite
Cuprite

Bastnasite
Bastnasite



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Cuprite
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Bastnasite

Cuprite and Bastnasite Optical Properties

Optical Properties

Luster

Adamantine
Vitreous, Greasy, Pearly

Pleochroism

visible
Faint

Dispersion

0.050.02
0.005 1
👆🏻

Transparency

TranslucentWalter Schumann
-

Refractive Index

2.8491.717-1.722
1 3.25
👆🏻

Optic Character

-
-

Crystal System

cubic
Hexagonal

Birefringence

-99990.100
0 0.296
👆🏻

Clarity

TranslucentWalter Schumann
TransparentUlrich Henn and Claudio C. Milisenda

Cuprite and Bastnasite Optic Character

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

Cuprite and Bastnasite Transparency

Similar to their colors, Cuprite 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, Cuprite is TranslucentWalter Schumann while Cuprite is TranslucentWalter Schumann in appearance.