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Lepidolite
Lepidolite

Franklinite
Franklinite



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Lepidolite
X
Franklinite

Lepidolite and Franklinite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Not Available
1.2 Pleochroism
X = almost colorless; Y = Z = pink
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Translucent
1.5 Refractive Index
1.525-1.587Not Available
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Triclinic
Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F d3m
1.8 Birefringence
0.0290-0.0380Not Available
Achroite
0 0.296
1.9 Clarity
Transparent
Translucent

Lepidolite and Franklinite Optic Character

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

Similar to their colors, Lepidolite and Franklinite 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.