Home
Gemstones


Lapis lazuli and Milarite Optical Properties


Milarite and Lapis lazuli Optical Properties


Optical Properties

Luster
Vitreous, Greasy   
Not Available   

Pleochroism
AbsentWalter Schumann   
Not Available   

Dispersion
None   
Not Available   

Transparency
Opaque   
Gemmological Tables (2004) More from other references   

Refractive Index
1.500-1.670   
1.529-1.560   

Optic Character
Not Available   
Not Available   

Crystal System
Trigonal   
Not Available   

Birefringence
Not Available   
0.000-0.011   

Clarity
Gemstones of the world (2001)   
TransparentUlrich Henn and Claudio C. Milisenda   

Benefits >>
<< Physical Properties

Lapis lazuli and Milarite Optic Character

Lapis lazuli and Milarite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Lapis lazuli and Milarite 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 Lapis lazuli and Milarite 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 Gems for Sagittarius

Lapis lazuli and Milarite Transparency

Similar to their colors, Lapis lazuli and Milarite 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, Lapis lazuli is Opaque while Lapis lazuli is Opaque in appearance.

Gems for Sagittarius

Gems for Sagittarius


Compare Gems for Sagittarius