×

Kyanite Cyprine
Kyanite Cyprine

Umbalite
Umbalite



ADD
Compare
X
Kyanite Cyprine
X
Umbalite

Kyanite Cyprine and Umbalite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Not Available
1.2 Pleochroism
Blue stones strong trichroism: colorless/pale blue (greenish or violet)-blue dark blueHerve Nicolas Lazzarelli
Not Available
1.3 Dispersion
0.020.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
TransparentGemdat.org, Management Team (2012)
1.5 Refractive Index
1.710-1.7351.730-1.820
Agate Opal
1 3.25
1.6 Optic Character
Biaxial/+
Not Available
1.7 Crystal System
Not Available
Not Available
1.8 Birefringence
0.012-0.033Not Available
Achroite
0 0.296
1.9 Clarity
Transparent
TransparentGemdat.org

Kyanite Cyprine and Umbalite Optic Character

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

Kyanite Cyprine and Umbalite Transparency

Similar to their colors, Kyanite Cyprine and Umbalite 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, Kyanite Cyprine is Transparent while Kyanite Cyprine is Transparent in appearance.