Tortoiseshell and Zincite Optical Properties

Tortoiseshell

Zincite

Add ⊕

1 Optical Properties

1.1 Luster

Not Available

Subadamantine, Resinous

1.2 Pleochroism

Not Available

Very weak

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Gemmological Tables (2004)

TransparentRobert C. Kammerling, The Journal of Gemmology (1995) More from other references

1.5 Refractive Index

1.540-1.5602.013-2.029

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

Hexagonal

1.8 Birefringence

Not Available0.016

0 0.296

1.9 Clarity

OpaqueUlrich Henn and Claudio C. Milisenda

TransparentRobert C. Kammerling

Tortoiseshell and Zincite Optic Character

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

Compare Blue Gemstones

Tortoiseshell Vs Wardite

Tortoiseshell Vs White Opal

Tortoiseshell Vs Watermelon Tourmaline

Tortoiseshell and Zincite Transparency

Similar to their colors, Tortoiseshell and Zincite 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.