×

Star Ruby
Star Ruby

Lapis lazuli
Lapis lazuli



ADD
Compare
X
Star Ruby
X
Lapis lazuli

Star Ruby and Lapis lazuli Optical Properties

Optical Properties

Luster

-
Vitreous, Greasy

Pleochroism

-
-

Dispersion

0.02-
0.005 1
👆🏻

Transparency

Transparent, Translucent
Opaque

Refractive Index

1.757-1.7801.500-1.670
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Trigonal

Birefringence

0.007-0.010-9999
0 0.296
👆🏻

Clarity

Transparent
-

Star Ruby and Lapis lazuli Optic Character

Star Ruby and Lapis lazuli optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Star Ruby and Lapis lazuli 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 Star Ruby and Lapis lazuli 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.

Star Ruby and Lapis lazuli Transparency

Similar to their colors, Star Ruby and Lapis lazuli 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, Star Ruby is Transparent and Translucent while Star Ruby is Transparent and Translucent in appearance.