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Powellite
Powellite

Tigers Eye
Tigers Eye



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Tigers Eye

Powellite and Tigers Eye Optical Properties

1 Optical Properties
1.1 Luster
Greasy, Subadamantine
Silky
1.2 Pleochroism
In deeply colored specimens: blue greenAnthony et al
Not Available
1.3 Dispersion
NANone
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Opaque
1.5 Refractive Index
1.974-1.9841.534-1.540
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Trigonal
1.8 Birefringence
Not AvailableNot Available
Achroite
0 0.296
1.9 Clarity
Transparent
Gemstones of the world (2001) More from other references

Powellite and Tigers Eye Optic Character

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

Powellite and Tigers Eye Transparency

Similar to their colors, Powellite and Tigers Eye 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, Powellite is Transparent while Powellite is Transparent in appearance.