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Lepidolite
Lepidolite

Gahnospinel
Gahnospinel



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Lepidolite
X
Gahnospinel

Lepidolite and Gahnospinel Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Vitreous
1.2 Pleochroism
X = almost colorless; Y = Z = pink
AbsentWalter Schumann
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Gemmological Tables (2004)
1.5 Refractive Index
1.525-1.5871.735-1.790
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Triclinic
Isometric
1.8 Birefringence
0.0290-0.0380Not Available
Achroite
0 0.296
1.9 Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Lepidolite and Gahnospinel Optic Character

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

Similar to their colors, Lepidolite and Gahnospinel 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.