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Nickeline
Nickeline

Apophyllite KF
Apophyllite KF



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Nickeline
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Apophyllite KF

Nickeline and Apophyllite KF Optical Properties

Optical Properties

Luster

-
Vitreous, Pearly

Pleochroism

Strong (reflected light)
-

Dispersion

0.040.01
0.005 1
👆🏻

Transparency

-
-

Refractive Index

-99991.530-1.536
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Hexagonal
tetragonal

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

-
-

Nickeline and Apophyllite KF Optic Character

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

Nickeline and Apophyllite KF Transparency

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