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Ludlamite
Ludlamite

Legrandite
Legrandite



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Ludlamite
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Legrandite

Ludlamite and Legrandite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Vitreous
1.2 Pleochroism
NilArthur Thomas
Colorless
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.7 Transparency
Gemmological Tables (2004) More from other references
Gems
1.8 Refractive Index
1.653-1.6931.702-1.740
Agate Opal
1 3.25
1.10 Optic Character
Not Available
Not Available
1.11 Crystal System
monoclinic
monoclinic
1.12 Birefringence
0.038-0.0440.060
Achroite
0 0.296
1.13 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Gems

Ludlamite and Legrandite Optic Character

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

Ludlamite and Legrandite Transparency

Similar to their colors, Ludlamite and Legrandite 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, Ludlamite is Gemmological Tables (2004) More from other references while Ludlamite is Gemmological Tables (2004) More from other references in appearance.