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Bastnasite
Bastnasite

Amber
Amber



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Bastnasite
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Amber

Bastnasite and Amber Optical Properties

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Optical Properties

Luster

Vitreous, Greasy, Pearly
Resinous

Pleochroism

Faint
-

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

-
Transparent, Translucent

Refractive Index

1.717-1.7221.539-1.545
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Hexagonal
-

Birefringence

0.100-9999
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Transparent

Bastnasite and Amber Optic Character

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

Bastnasite and Amber Transparency

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