Home
Gemstones


Powellite and Jeremejevite Optical Properties


Jeremejevite and Powellite Optical Properties


Optical Properties

Luster
Greasy, Subadamantine   
Vitreous   

Pleochroism
In deeply colored specimens: blue greenAnthony et al   
Colorless   

Dispersion
Not Available   
Not Available   

Transparency
Transparent   
Gemmological Tables (2004) More from other references   

Refractive Index
1.974-1.984   
1.638-1.650   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
Hexagonal   

Birefringence
Not Available   
0.0130   

Clarity
Transparent   
TransparentUlrich Henn and Claudio C. Milisenda   

Benefits >>
<< Physical Properties

Powellite and Jeremejevite Optic Character

Powellite and Jeremejevite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Powellite and Jeremejevite 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 Powellite and Jeremejevite 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 Blue Gemstones

Powellite and Jeremejevite Transparency

Similar to their colors, Powellite and Jeremejevite 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, Powellite is Transparent while Powellite is Transparent in appearance.

Blue Gemstones

Blue Gemstones


Compare Blue Gemstones