Charoite and Charlesite Optical Properties
Luster
Pearly, Chatoyant
Vitreous
Pleochroism
-
Nearly colorless to pale golden yellow
Transparency
Translucent
-
Refractive Index
1.545-1.560
1.492
Crystal System
Triclinic
Trigonal
Birefringence
0.009
-9999
Charoite and Charlesite Optic Character
Charoite and Charlesite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Charoite and Charlesite 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 Charoite and Charlesite 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.
Charoite and Charlesite Transparency
Similar to their colors, Charoite and Charlesite 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, Charoite is Translucent while Charoite is Translucent in appearance.