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Kyanite
Kyanite

Gedrite
Gedrite



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Kyanite
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Gedrite

Kyanite and Gedrite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous, Pearly
Fibrous, Vitreous
1.2 Pleochroism
Trichroic
Weak to moderate
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Transparent
1.5 Refractive Index
1.71-1.741.625-1.718
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Triclinic
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
1.8 Birefringence
Not AvailableNot Available
Achroite
0 0.296
1.9 Clarity
Color grading system
Transparent

Kyanite and Gedrite Optic Character

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

Similar to their colors, Kyanite and Gedrite 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 is Not Available while Kyanite is Not Available in appearance.