×

Tortoiseshell
Tortoiseshell

Narsarsukite
Narsarsukite



ADD
Compare
X
Tortoiseshell
X
Narsarsukite

Tortoiseshell and Narsarsukite Optical Properties

Optical Properties

Luster

-
Vitreous, Pearly

Pleochroism

-
Weak; O = colorless to yellow; E = colorless to honey-yellow

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

-
Transparent, Translucent

Refractive Index

1.540-1.5601.610-1.647
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
tetragonal

Birefringence

-99990.021
0 0.296
👆🏻

Clarity

OpaqueUlrich Henn and Claudio C. Milisenda
Transparent

Tortoiseshell and Narsarsukite Optic Character

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

Similar to their colors, Tortoiseshell and Narsarsukite 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 while Tortoiseshell is in appearance.