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Zebra Rock
Zebra Rock

Tortoiseshell
Tortoiseshell



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Zebra Rock
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Tortoiseshell

Zebra Rock and Tortoiseshell Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Not Available
1.2 Pleochroism
Not Available
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Gemmological Tables (2004)
1.5 Refractive Index
Not Available1.540-1.560
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
​ face-centered cubic (fcc)
Not Available
1.8 Birefringence
Not AvailableNot Available
Achroite
0 0.296
1.9 Clarity
Not Available
OpaqueUlrich Henn and Claudio C. Milisenda

Zebra Rock and Tortoiseshell Optic Character

Zebra Rock and Tortoiseshell optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Zebra Rock and Tortoiseshell 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 Zebra Rock and Tortoiseshell 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.

Zebra Rock and Tortoiseshell Transparency

Similar to their colors, Zebra Rock and Tortoiseshell 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, Zebra Rock is Not Available while Zebra Rock is Not Available in appearance.