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Diamond and Proustite Optical Properties


Proustite and Diamond Optical Properties


Optical Properties

Luster
Adamantine   
Adamantine   

Pleochroism
None   
Moderate; cochineal-red to blood-red   

Dispersion
0.04   
10
Not Available   

Transparency
Transparent, Translucent, Transparent to opaque   
OpaqueUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) Rarely transparentMore from other references   

Refractive Index
2.417-2.419   
2.792-3.087   

Optic Character
Not Available   
Not Available   

Crystal System
cubic   
Trigonal   

Birefringence
Not Available   
0.295-0.296   

Clarity
Transparent   
OpaqueUlrich Henn and Claudio C. Milisenda   

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Diamond and Proustite Optic Character

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

Similar to their colors, Diamond and Proustite 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, Diamond is Translucent, Transparent and Transparent to opaque while Diamond is Translucent, Transparent and Transparent to opaque in appearance.

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