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Bastnsite
Bastnsite

Clinochlore
Clinochlore



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Bastnsite
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Clinochlore

Bastnsite and Clinochlore Optical Properties

Optical Properties

Luster

-
Pearly, Greasy

Pleochroism

-
Distinct: light yellow-green to light bluE

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

1.72-1.821.571-1.597
1 3.25
👆🏻

Optic Character

-
Biaxial/+

Crystal System

-
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/m

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

-
Transparent

Bastnsite and Clinochlore Optic Character

Bastnsite and Clinochlore optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Bastnsite and Clinochlore 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 Bastnsite and Clinochlore 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. Clinochlore has Biaxial/+ character.

Bastnsite and Clinochlore Transparency

Similar to their colors, Bastnsite and Clinochlore 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, Bastnsite is while Bastnsite is in appearance.