Nifontovite and Sapphire Optical Properties
Luster
Not Available
Vitreous, Adamantine, Vitreous, Adamantine
Pleochroism
Not Available
Strong
Transparency
Transparent
Transparent, Translucent, Transparent to opaque
Refractive Index
1.573-1.585
1.762-1.788
Optic Character
Not Available
Not Available
Crystal System
Not Available
Trigonal
Birefringence
Not Available
0.008-0.009
Clarity
Transparent
Transparent
Nifontovite and Sapphire Optic Character
Nifontovite and Sapphire optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Nifontovite and Sapphire 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 Sapphire 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 Sapphire Transparency
Similar to their colors, Nifontovite and Sapphire 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.