Home
Gemstones


Iolite and Eosphorite Optical Properties


Eosphorite and Iolite Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous, Resinous   

Pleochroism
Not Available   
Visible: X = yellow; Y = pink; Z = pale pink to colorless   

Dispersion
Not Available   
Not Available   

Transparency
Transparent, Translucent, Transparent to translucent   
Transparent   

Refractive Index
1.52-1.56   
1.639-1.672   

Optic Character
Not Available   
Not Available   

Crystal System
Orthorhombic   
Orthorhombic   

Birefringence
Not Available   
0.029-0.032   

Clarity
Transparent to translucent   
Transparent   

Benefits >>
<< Physical Properties

Iolite and Eosphorite Optic Character

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

Compare Gems for Taurus

Iolite and Eosphorite Transparency

Similar to their colors, Iolite and Eosphorite 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, Iolite is Translucent, Transparent and Transparent to translucent while Iolite is Translucent, Transparent and Transparent to translucent in appearance.

Taurus Gems

Taurus Gems

» More Taurus Gems

Compare Gems for Taurus

» More Compare Gems for Taurus