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Lepidolite
Lepidolite

Kyanite Cyprine
Kyanite Cyprine



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Lepidolite
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Kyanite Cyprine

Lepidolite and Kyanite Cyprine Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Vitreous
1.2 Pleochroism
X = almost colorless; Y = Z = pink
Blue stones strong trichroism: colorless/pale blue (greenish or violet)-blue dark blueHerve Nicolas Lazzarelli
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
0.02
Rank: 18 (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparent
Transparent
1.5 Refractive Index
1.525-1.587
1.710-1.735
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
Triclinic
Not Available
1.8 Birefringence
0.0290-0.0380
0.012-0.033
1.9 Clarity
Transparent
Transparent

Lepidolite and Kyanite Cyprine Optic Character

Lepidolite and Kyanite Cyprine optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Lepidolite and Kyanite Cyprine 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 Kyanite Cyprine 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. Kyanite Cyprine has Biaxial/+ character.

Lepidolite and Kyanite Cyprine Transparency

Similar to their colors, Lepidolite and Kyanite Cyprine 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.

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