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Chrysocolla
Chrysocolla

Bastnasite
Bastnasite



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Chrysocolla
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Bastnasite

Chrysocolla and Bastnasite Optical Properties

Optical Properties

Luster

Vitreous, Greasy
Vitreous, Greasy, Pearly

Pleochroism

-
Faint

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

Opaque
-

Refractive Index

1.460-1.5701.717-1.722
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
Hexagonal

Birefringence

0.023-0.0500.100
0 0.296
👆🏻

Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Chrysocolla and Bastnasite Optic Character

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

Chrysocolla and Bastnasite Transparency

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