Home
Gemstones


Manganotantalite and Iolite Optical Properties


Iolite and Manganotantalite Optical Properties


Optical Properties

Luster
Not Available   
Vitreous   

Pleochroism
Sometimes strongArthur Thomas   
Not Available   

Dispersion
Not Available   
Not Available   

Transparency
TransparentWalter Schumann, Gemstones of the world (2001) More from other references   
Transparent, Translucent, Transparent to translucent   

Refractive Index
2.19-2.34   
1.52-1.56   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
Orthorhombic   

Birefringence
0.015   
Not Available   

Clarity
TransparentWalter Schumann   
Transparent to translucent   

Benefits >>
<< Physical Properties

Manganotantalite and Iolite Optic Character

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

Compare Red Gemstones

Manganotantalite and Iolite Transparency

Similar to their colors, Manganotantalite 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, Manganotantalite is Gemstones of the world (2001) More from other references and TransparentWalter Schumann while Manganotantalite is Gemstones of the world (2001) More from other references and TransparentWalter Schumann in appearance.

Red Gemstones

Red Gemstones


Compare Red Gemstones