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Legrandite
Legrandite

Gahnite
Gahnite



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Legrandite
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Gahnite

Legrandite and Gahnite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
Colorless
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gems
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.702-1.7401.790-1.818
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
cubic
1.8 Birefringence
0.060Not Available
Achroite
0 0.296
1.9 Clarity
Gems
TransparentUlrich Henn and Claudio C. Milisenda

Legrandite and Gahnite Optic Character

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

Similar to their colors, Legrandite and Gahnite 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.