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Papagoite
Papagoite

Tortoiseshell
Tortoiseshell



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Papagoite
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Tortoiseshell

Papagoite and Tortoiseshell Optical Properties

Optical Properties

Luster

Vitreous
-

Pleochroism

Trichroic
-

Dispersion

0.010.01
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

1.607-1.6721.540-1.560
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
-

Birefringence

0.065-9999
0 0.296
👆🏻

Clarity

Transparent
OpaqueUlrich Henn and Claudio C. Milisenda

Papagoite and Tortoiseshell Optic Character

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

Papagoite and Tortoiseshell Transparency

Similar to their colors, Papagoite 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, Papagoite is Transparent while Papagoite is Transparent in appearance.