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Lepidolite
Lepidolite

Manganotantalite
Manganotantalite



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X
Lepidolite
X
Manganotantalite

Lepidolite and Manganotantalite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Not Available
1.2 Pleochroism
X = almost colorless; Y = Z = pink
Sometimes strongArthur Thomas
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
TransparentWalter Schumann, Gemstones of the world (2001) More from other references
1.5 Refractive Index
1.525-1.5872.19-2.34
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Triclinic
Not Available
1.8 Birefringence
0.0290-0.03800.015
Achroite
0 0.296
1.9 Clarity
Transparent
TransparentWalter Schumann

Lepidolite and Manganotantalite Optic Character

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

Lepidolite and Manganotantalite Transparency

Similar to their colors, Lepidolite and Manganotantalite 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, Lepidolite is Transparent while Lepidolite is Transparent in appearance.