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Kyanite
Kyanite

Williamsite
Williamsite



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Kyanite
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Williamsite

Kyanite and Williamsite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Waxy, Silky, Resinous, Greasy
1.2 Pleochroism
Trichroic
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
TranslucentHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)
1.5 Refractive Index
1.71-1.741.530-1.575
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Triclinic
Not Available
1.8 Birefringence
Not AvailableNot Available
Achroite
0 0.296
1.9 Clarity
Color grading system
TranslucentHerve Nicolas Lazzarelli

Kyanite and Williamsite Optic Character

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

Similar to their colors, Kyanite and Williamsite 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.