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Hibschite and Danburite Optical Properties


Danburite and Hibschite Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous, Greasy   

Pleochroism
Not Available   
Weak: pale yellow yellow   

Dispersion
Not Available   
0.02   
22

Transparency
Semitransparent   
Gemmological Tables (2004) More from other references   

Refractive Index
Not Available   
1.627-1.639   

Optic Character
Not Available   
Biaxial/+   

Crystal System
Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: I a3d   
Orthorhombic   

Birefringence
Not Available   
0.006   

Clarity
TranslucentAnthony et al   
TransparentUlrich Henn and Claudio C. Milisenda   

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Hibschite and Danburite Optic Character

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

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Hibschite and Danburite Transparency

Similar to their colors, Hibschite 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, Hibschite is Semitransparent while Hibschite is Semitransparent in appearance.

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