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Legrandite
Legrandite

Andalusite
Andalusite



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Legrandite
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Andalusite

Legrandite and Andalusite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous, Greasy
1.2 Pleochroism
Colorless
strongly trichroic
1.3 Dispersion
NA0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gems
Transparent, Translucent
1.5 Refractive Index
1.702-1.7401.627-1.650
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Orthorhombic
1.8 Birefringence
0.0600.009-0.010
Achroite
0 0.296
1.9 Clarity
Gems
Transparent

Legrandite and Andalusite Optic Character

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

Legrandite and Andalusite Transparency

Similar to their colors, Legrandite and Andalusite 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, Legrandite is Gems while Legrandite is Gems in appearance.