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Glaucophane
Glaucophane

Bastnasite
Bastnasite



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Glaucophane
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Bastnasite

Glaucophane and Bastnasite Optical Properties

Optical Properties

Luster

Vitreous, Pearly
Vitreous, Greasy, Pearly

Pleochroism

Strong
Faint

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.606-1.6371.717-1.722
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
Hexagonal

Birefringence

-99990.100
0 0.296
👆🏻

Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Glaucophane and Bastnasite Optic Character

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

Glaucophane and Bastnasite Transparency

Similar to their colors, Glaucophane 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, Glaucophane is while Glaucophane is in appearance.