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Tortoiseshell
Tortoiseshell

Stichtite
Stichtite



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Tortoiseshell
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Stichtite

Tortoiseshell and Stichtite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Waxy, Resinous
1.2 Pleochroism
Not Available
Weak
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004)
Translucent
1.5 Refractive Index
1.540-1.5601.516-1.544
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Trigonal
1.8 Birefringence
Not Available0.026
Achroite
0 0.296
1.9 Clarity
OpaqueUlrich Henn and Claudio C. Milisenda
Translucent

Tortoiseshell and Stichtite Optic Character

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

Tortoiseshell and Stichtite Transparency

Similar to their colors, Tortoiseshell and Stichtite 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, Tortoiseshell is Gemmological Tables (2004) while Tortoiseshell is Gemmological Tables (2004) in appearance.