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Tigers Eye
Tigers Eye

Petalite
Petalite



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Tigers Eye
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Petalite

Tigers Eye and Petalite Optical Properties

1 Optical Properties
1.1 Luster
Silky
Vitreous, Pearly
1.2 Pleochroism
Not Available
AbsentWalter Schumann
1.3 Dispersion
None0.01
Fluorite Optical Properties
0.007 1
1.4 Transparency
Opaque
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.534-1.5401.502-1.523
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
monoclinic
1.8 Birefringence
Not Available0.012-0.016
Achroite
0 0.296
1.9 Clarity
Gemstones of the world (2001) More from other references
TransparentUlrich Henn and Claudio C. Milisenda

Tigers Eye and Petalite Optic Character

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

Similar to their colors, Tigers Eye and Petalite 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.