Home
Gemstones


Thulite and Selenite Optical Properties


Selenite and Thulite Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous   

Pleochroism
Present   
Not Available   

Dispersion
Not Available   
Not Available   

Transparency
Opaque, Translucent, Opaque . May be translucent in thin backlit sections.   
Transparent   

Refractive Index
1.695   
Not Available   

Optic Character
Not Available   
Not Available   

Crystal System
Orthorhombic   
monoclinic   

Birefringence
0.006-0.018   
Not Available   

Clarity
OpaqueHerve Nicolas Lazzarelli   
Transparent   

Benefits >>
<< Physical Properties

Thulite and Selenite Optic Character

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

Thulite and Selenite Transparency

Similar to their colors, Thulite and Selenite 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, Thulite is Opaque, Opaque . May be translucent in thin backlit sections. and Translucent while Thulite is Opaque, Opaque . May be translucent in thin backlit sections. and Translucent in appearance.

Red Gemstones

Red Gemstones


Compare Red Gemstones