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Bastnsite
Bastnsite

Apophyllite KF
Apophyllite KF



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Bastnsite
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Apophyllite KF

Bastnsite and Apophyllite KF Optical Properties

Optical Properties

Luster

-
Vitreous, Pearly

Pleochroism

-
-

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.72-1.821.530-1.536
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
tetragonal

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

-
-

Bastnsite and Apophyllite KF Optic Character

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

Bastnsite and Apophyllite KF Transparency

Similar to their colors, Bastnsite and Apophyllite KF 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.