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Lawsonite
Lawsonite

Anthophyllite
Anthophyllite



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Lawsonite
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Anthophyllite

Lawsonite and Anthophyllite Optical Properties

Optical Properties

Luster

Vitreous, Greasy
Vitreous, Pearly

Pleochroism

Weak
-

Dispersion

0.010.01
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

1.672-1.6761.603-1.690
1 3.25
👆🏻

Optic Character

-
Biaxial/+

Crystal System

Orthorhombic
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma

Birefringence

0.019-0.021-9999
0 0.296
👆🏻

Clarity

-
Transparent

Lawsonite and Anthophyllite Optic Character

Lawsonite and Anthophyllite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Lawsonite and Anthophyllite 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 Anthophyllite 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. Anthophyllite has Biaxial/+ character.

Lawsonite and Anthophyllite Transparency

Similar to their colors, Lawsonite and Anthophyllite 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.