Charoite and Rutile Optical Properties
Luster
Pearly, Fibrous, Chatoyant
Adamantine
Pleochroism
NilArthur Thomas
Weak to distinct brownish red-green-yellow
Dispersion
Not Available
Not Available
Transparency
Translucent
Transparent, Translucent
Refractive Index
1.545-1.560
2.609-2.903
Optic Character
Not Available
Not Available
Crystal System
Triclinic
tetragonal
Birefringence
0.009
0.296
Clarity
Translucent
Transparent
Charoite and Rutile Optic Character
Charoite and Rutile optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Charoite and Rutile 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 Rutile 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 Rutile Transparency
Similar to their colors, Charoite and Rutile 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.