Home
Gemstones


Jacobsite and Thulite Optical Properties


Thulite and Jacobsite Optical Properties


Optical Properties

Luster
Not Available   
Vitreous   

Pleochroism
Not Available   
Present   

Dispersion
Not Available   
Not Available   

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

Refractive Index
Not Available   
1.695   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
Orthorhombic   

Birefringence
Not Available   
0.006-0.018   

Clarity
Translucent   
OpaqueHerve Nicolas Lazzarelli   

Benefits >>
<< Physical Properties

Jacobsite and Thulite Optic Character

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

Jacobsite and Thulite Transparency

Similar to their colors, Jacobsite and Thulite 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, Jacobsite is Translucent while Jacobsite is Translucent in appearance.

Brown Gemstones

Brown Gemstones


Compare Brown Gemstones