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Lepidolite
Lepidolite

Lapis lazuli
Lapis lazuli



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Lepidolite
X
Lapis lazuli

Lepidolite and Lapis lazuli Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Vitreous, Greasy
1.2 Pleochroism
X = almost colorless; Y = Z = pink
AbsentWalter Schumann
1.3 Dispersion
NANone
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Opaque
1.5 Refractive Index
1.525-1.5871.500-1.670
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Triclinic
Trigonal
1.8 Birefringence
0.0290-0.0380Not Available
Achroite
0 0.296
1.9 Clarity
Transparent
Gemstones of the world (2001)

Lepidolite and Lapis lazuli Optic Character

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

Similar to their colors, Lepidolite and Lapis lazuli 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.