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Cerussite and Almandine Optical Properties


Almandine and Cerussite Optical Properties


Optical Properties

Luster
Adamantine, Vitreous, Resinous   
Greasy, Vitreous   

Pleochroism
AbsentWalter Schumann   
None   

Dispersion
0.06   
8
0.03   
15

Transparency
Transparent, Translucent   
Gemmological Tables (2004) More from other references   

Refractive Index
1.803-2.078   
1.770-1.820   

Optic Character
Not Available   
Not Available   

Crystal System
Orthorhombic   
cubic   

Birefringence
0.273   
Not Available   

Clarity
Transparent   
TransparentUlrich Henn and Claudio C. Milisenda   

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Cerussite and Almandine Optic Character

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

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Cerussite and Almandine Transparency

Similar to their colors, Cerussite and Almandine 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, Cerussite is Translucent and Transparent while Cerussite is Translucent and Transparent in appearance.

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