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Lepidolite
Lepidolite

Omphacite
Omphacite



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Lepidolite
X
Omphacite

Lepidolite and Omphacite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Vitreous
1.2 Pleochroism
X = almost colorless; Y = Z = pink
Weak: colorless -- very pale green -- very pale green
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
TranslucentAnthony et al, Handbook of mineralogy (2001)
1.5 Refractive Index
1.525-1.5871.662-1.723
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Triclinic
Not Available
1.8 Birefringence
0.0290-0.0380Not Available
Achroite
0 0.296
1.9 Clarity
Transparent
TranslucentAnthony et al

Lepidolite and Omphacite Optic Character

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

Similar to their colors, Lepidolite and Omphacite 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.