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Rhodolite
Rhodolite

Tortoiseshell
Tortoiseshell



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Rhodolite
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Tortoiseshell

Rhodolite and Tortoiseshell Optical Properties

1 Optical Properties
1.1 Luster
Greasy, Vitreous
Not Available
1.2 Pleochroism
None
Not Available
1.3 Dispersion
NoneNA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004)
Gemmological Tables (2004)
1.5 Refractive Index
1.7601.540-1.560
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
cubic
Not Available
1.8 Birefringence
0.010-0.014Not Available
Achroite
0 0.296
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
OpaqueUlrich Henn and Claudio C. Milisenda

Rhodolite and Tortoiseshell Optic Character

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

Rhodolite and Tortoiseshell Transparency

Similar to their colors, Rhodolite 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, Rhodolite is Gemmological Tables (2004) while Rhodolite is Gemmological Tables (2004) in appearance.