Nifontovite and Iolite Optical Properties
Luster
Not Available
Vitreous
Pleochroism
Not Available
Not Available
Dispersion
Not Available
Not Available
Transparency
Transparent
Transparent, Translucent, Transparent to translucent
Refractive Index
1.573-1.585
1.52-1.56
Optic Character
Not Available
Not Available
Crystal System
Not Available
Orthorhombic
Birefringence
Not Available
Not Available
Clarity
Transparent
Transparent to translucent
Nifontovite and Iolite Optic Character
Nifontovite and Iolite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Nifontovite and Iolite 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 Nifontovite and Iolite 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.
Nifontovite and Iolite Transparency
Similar to their colors, Nifontovite and Iolite 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, Nifontovite is Transparent while Nifontovite is Transparent in appearance.