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Demantoid Garnet
Demantoid Garnet

Tortoiseshell
Tortoiseshell



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Demantoid Garnet
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Tortoiseshell

Demantoid Garnet 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
1.88-1.891.540-1.560
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Isometric
Not Available
1.8 Birefringence
Not AvailableNot Available
Achroite
0 0.296
1.9 Clarity
Color grading system
OpaqueUlrich Henn and Claudio C. Milisenda

Demantoid Garnet and Tortoiseshell Optic Character

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

Demantoid Garnet and Tortoiseshell Transparency

Similar to their colors, Demantoid Garnet 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, Demantoid Garnet is Not Available while Demantoid Garnet is Not Available in appearance.