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Liddicoatite
Liddicoatite

Legrandite
Legrandite



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Liddicoatite
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Legrandite

Liddicoatite and Legrandite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
Strong: dark brown light brownAnthony et al
Colorless
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Gems
1.5 Refractive Index
Not Available1.702-1.740
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
monoclinic
1.8 Birefringence
Not Available0.060
Achroite
0 0.296
1.9 Clarity
Transparent
Gems

Liddicoatite and Legrandite Optic Character

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

Liddicoatite and Legrandite Transparency

Similar to their colors, Liddicoatite 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, Liddicoatite is Transparent while Liddicoatite is Transparent in appearance.