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Pyrope Almandine and Danburite Optical Properties


Danburite and Pyrope Almandine Optical Properties


Optical Properties

Luster
Not Available   
Vitreous, Greasy   

Pleochroism
AbsentWalter Schumann   
Weak: pale yellow yellow   

Dispersion
0.02   
16
0.02   
22

Transparency
TransparentGemdat.org, Management Team (2012)   
Gemmological Tables (2004) More from other references   

Refractive Index
1.73-1.77   
1.627-1.639   

Optic Character
Not Available   
Biaxial/+   

Crystal System
Not Available   
Orthorhombic   

Birefringence
Not Available   
0.006   

Clarity
TransparentGemdat.org   
TransparentUlrich Henn and Claudio C. Milisenda   

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Pyrope Almandine and Danburite Optic Character

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

Similar to their colors, Pyrope Almandine 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, Pyrope Almandine is Management Team (2012) and TransparentGemdat.org while Pyrope Almandine is Management Team (2012) and TransparentGemdat.org in appearance.

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