Afghanite and Apophyllite KF Optical Properties

Afghanite

Apophyllite KF

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1 Optical Properties

1.1 Luster

Vitreous

Vitreous, Pearly

1.2 Pleochroism

Not Available

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Transparent, Gemstones (2009)

Not Available

1.5 Refractive Index

1.5231.530-1.536

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Trigonal

tetragonal

1.8 Birefringence

0.006Not Available

0 0.296

1.9 Clarity

Transparent

Not Available

Afghanite and Apophyllite KF Optic Character

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

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Afghanite and Apophyllite KF Transparency

Similar to their colors, Afghanite 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, Afghanite is Gemstones (2009) and Transparent while Afghanite is Gemstones (2009) and Transparent in appearance.