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Bastnasite
Bastnasite

Morganite
Morganite



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Bastnasite
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Morganite

Bastnasite and Morganite Optical Properties

Optical Properties

Luster

Vitreous, Greasy, Pearly
Vitreous

Pleochroism

Faint
Distinct: pale pink bluish-pinkHerve Nicolas Lazzarelli

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

-
Transparent, Translucent, Transparent to translucent

Refractive Index

1.717-1.7221.573-1.600
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Hexagonal
Hexagonal

Birefringence

0.1000.005-0.009
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Transparent to translucent

Bastnasite and Morganite Optic Character

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

Similar to their colors, Bastnasite and Morganite 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.