Home
Gemstones


Rock Crystal and Tortoiseshell Optical Properties


Tortoiseshell and Rock Crystal Optical Properties


Optical Properties

Luster
Not Available   
Not Available   

Pleochroism
AbsentWalter Schumann   
Not Available   

Dispersion
0.01   
27
Not Available   

Transparency
TransparentWalter Schumann, Gemstones of the world (2001) More from other references   
Gemmological Tables (2004)   

Refractive Index
1.544-1.553   
1.540-1.560   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
Not Available   

Birefringence
0.009   
Not Available   

Clarity
TransparentWalter Schumann   
OpaqueUlrich Henn and Claudio C. Milisenda   

Benefits >>
<< Physical Properties

Rock Crystal and Tortoiseshell Optic Character

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

Compare Blue Gemstones

Rock Crystal and Tortoiseshell Transparency

Similar to their colors, Rock Crystal 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, Rock Crystal is Gemstones of the world (2001) More from other references and TransparentWalter Schumann while Rock Crystal is Gemstones of the world (2001) More from other references and TransparentWalter Schumann in appearance.

Blue Gemstones

Blue Gemstones


Compare Blue Gemstones