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Leucite
Leucite

Phlogopite
Phlogopite



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Leucite
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Phlogopite

Leucite and Phlogopite Optical Properties

Optical Properties

Luster

Vitreous
Pearly

Pleochroism

-
-

Dispersion

0.010.04
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.504-1.5101.530-1.573
1 3.25
👆🏻

Optic Character

-
-

Crystal System

tetragonal
monoclinic

Birefringence

0.0010.0280-0.0450
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
-

Leucite and Phlogopite Optic Character

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

Leucite and Phlogopite Transparency

Similar to their colors, Leucite and Phlogopite 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, Leucite is while Leucite is in appearance.