Home
Gemstones


Gedrite and Danburite Optical Properties


Danburite and Gedrite Optical Properties


Optical Properties

Luster
Fibrous, Vitreous   
Vitreous, Greasy   

Pleochroism
Weak to moderate   
Weak: pale yellow yellow   

Dispersion
Not Available   
0.02   
22

Transparency
Transparent   
Gemmological Tables (2004) More from other references   

Refractive Index
1.625-1.718   
1.627-1.639   

Optic Character
Not Available   
Biaxial/+   

Crystal System
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma   
Orthorhombic   

Birefringence
Not Available   
0.006   

Clarity
Transparent   
TransparentUlrich Henn and Claudio C. Milisenda   

Benefits >>
<< Physical Properties

Gedrite and Danburite Optic Character

Gedrite and Danburite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Gedrite and Danburite 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 Gedrite and Danburite 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. Danburite has Biaxial/+ character.

Compare Brown Gemstones

Gedrite and Danburite Transparency

Similar to their colors, Gedrite and Danburite 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, Gedrite is Transparent while Gedrite is Transparent in appearance.

Brown Gemstones

Brown Gemstones


Compare Brown Gemstones