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Lawsonite
Lawsonite

Grandidierite
Grandidierite



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Lawsonite
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Grandidierite

Lawsonite and Grandidierite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Greasy
Vitreous, Pearly
1.2 Pleochroism
Weak
visible
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.672-1.6761.578-1.639
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Orthorhombic
1.8 Birefringence
0.019-0.0210.037-0.039
Achroite
0 0.296
1.9 Clarity
Not Available
Gemmological Tables (2004) More from other references

Lawsonite and Grandidierite Optic Character

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

Similar to their colors, Lawsonite and Grandidierite 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.