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Tigers Eye
Tigers Eye

Proustite
Proustite



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Tigers Eye
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Proustite

Tigers Eye and Proustite Optical Properties

1 Optical Properties
1.1 Luster
Silky
Adamantine
1.2 Pleochroism
Not Available
Moderate; cochineal-red to blood-red
1.3 Dispersion
Albite Optical ..
None
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Opaque
OpaqueUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) Rarely transparentMore from other references
1.5 Refractive Index
1.534-1.540
2.792-3.087
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Trigonal
1.8 Birefringence
Not Available
0.295-0.296
1.9 Clarity
Gemstones of the world (2001) More from other references
OpaqueUlrich Henn and Claudio C. Milisenda

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.

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.