Lawsonite and Erythrite Optical Properties

Lawsonite

Erythrite

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1 Optical Properties

1.1 Luster

Vitreous, Greasy

Subadamantine, Pearly

1.2 Pleochroism

Weak

Visible: X = pale pinkish to pale rose; Y = pale violet to pale violet-rose; Z = deep red

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Not Available

1.5 Refractive Index

1.672-1.6761.626-1.629

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Orthorhombic

monoclinic

1.8 Birefringence

0.019-0.021Not Available

0 0.296

1.9 Clarity

Not Available

Lawsonite and Erythrite Optic Character

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

Similar to their colors, Lawsonite and Erythrite 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 Not Available while Lawsonite is Not Available in appearance.