Lawsonite and Hibschite Optical Properties

Lawsonite

Hibschite

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1 Optical Properties

1.1 Luster

Vitreous, Greasy

Vitreous

1.2 Pleochroism

Weak

Not Available

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Not Available

Semitransparent

1.5 Refractive Index

1.672-1.676Not Available

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Orthorhombic

Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: I a3d

1.8 Birefringence

0.019-0.021Not Available

0 0.296

1.9 Clarity

Not Available

TranslucentAnthony et al

Lawsonite and Hibschite Optic Character

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

Similar to their colors, Lawsonite and Hibschite 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.