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Whitlockite
Whitlockite

Bastnasite
Bastnasite



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Whitlockite
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Bastnasite

Whitlockite and Bastnasite Optical Properties

Optical Properties

Luster

Vitreous, Resinous
Vitreous, Greasy, Pearly

Pleochroism

-
Faint

Dispersion

0.040.02
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

-99991.717-1.722
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Hexagonal

Birefringence

-99990.100
0 0.296
👆🏻

Clarity

Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Whitlockite and Bastnasite Optic Character

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

Whitlockite and Bastnasite Transparency

Similar to their colors, Whitlockite 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, Whitlockite is Transparent while Whitlockite is Transparent in appearance.