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Forsterite
Forsterite

Kyanite Cyprine
Kyanite Cyprine



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Forsterite
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Kyanite Cyprine

Forsterite and Kyanite Cyprine Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
colorless.
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
1.635-1.671
1.710-1.735
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
Orthorhombic
Not Available
1.8 Birefringence
0.033-0.042
0.012-0.033
1.9 Clarity
Transparent
Transparent

Forsterite and Kyanite Cyprine Optic Character

Forsterite and Kyanite Cyprine optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Forsterite 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 Forsterite 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.

Forsterite and Kyanite Cyprine Transparency

Similar to their colors, Forsterite 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, Forsterite is Transparent while Forsterite is Transparent in appearance.