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Tigers Eye and Proustite Optical Properties


Proustite and Tigers Eye Optical Properties


Optical Properties

Luster
Silky   
Adamantine   

Pleochroism
Not Available   
Moderate; cochineal-red to blood-red   

Dispersion
None   
Not Available   

Transparency
Opaque   
OpaqueUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) Rarely transparentMore from other references   

Refractive Index
1.534-1.540   
2.792-3.087   

Optic Character
Not Available   
Not Available   

Crystal System
Trigonal   
Trigonal   

Birefringence
Not Available   
0.295-0.296   

Clarity
Gemstones of the world (2001) More from other references   
OpaqueUlrich Henn and Claudio C. Milisenda   

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Tigers Eye and Proustite Optic Character

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

Similar to their colors, Tigers Eye 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, Tigers Eye is Opaque while Tigers Eye is Opaque in appearance.

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