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Jasper
Jasper

Bastnasite
Bastnasite



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Jasper
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Bastnasite

Jasper and Bastnasite Optical Properties

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Optical Properties

Luster

Vitreous
Vitreous, Greasy, Pearly

Pleochroism

-
Faint

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

Opaque
-

Refractive Index

1.5401.717-1.722
1 3.25
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Optic Character

-
-

Crystal System

Trigonal
Hexagonal

Birefringence

-99990.100
0 0.296
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Clarity

OpaqueHerve Nicolas Lazzarelli
TransparentUlrich Henn and Claudio C. Milisenda

Jasper and Bastnasite Optic Character

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

Jasper and Bastnasite Transparency

Similar to their colors, Jasper 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, Jasper is Opaque while Jasper is Opaque in appearance.