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Villiaumite
Villiaumite

Tigers Eye
Tigers Eye



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Villiaumite
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Tigers Eye

Villiaumite and Tigers Eye Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Silky
1.2 Pleochroism
Yellow to pink/deep carmineMichael O’Donoghue
Not Available
1.3 Dispersion
NANone
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004) More from other references
Opaque
1.5 Refractive Index
1.328-1.3321.534-1.540
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
TransparentUlrich Henn and Claudio C. Milisenda
Gemstones of the world (2001) More from other references

Villiaumite and Tigers Eye Optic Character

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

Villiaumite and Tigers Eye Transparency

Similar to their colors, Villiaumite 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, Villiaumite is Gemmological Tables (2004) More from other references while Villiaumite is Gemmological Tables (2004) More from other references in appearance.