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Lawsonite
Lawsonite

Pyrophyllite
Pyrophyllite



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Lawsonite
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Pyrophyllite

Lawsonite and Pyrophyllite Optical Properties

Optical Properties

Luster

Vitreous, Greasy
Pearly

Pleochroism

Weak
-

Dispersion

0.010.05
0.005 1
👆🏻

Transparency

-
Translucent

Refractive Index

1.672-1.6761.534-1.601
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
-

Birefringence

0.019-0.0210.050
0 0.296
👆🏻

Clarity

-
Translucent

Lawsonite and Pyrophyllite Optic Character

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

Lawsonite and Pyrophyllite Transparency

Similar to their colors, Lawsonite and Pyrophyllite 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, Lawsonite is while Lawsonite is in appearance.