Home
Gemstones


Jet and Ludlamite Optical Properties


Jet
Ludlamite and Jet Optical Properties


Optical Properties

Luster
Waxy   
Vitreous, Pearly   

Pleochroism
AbsentWalter Schumann   
NilArthur Thomas   

Dispersion
None   
Not Available   

Transparency
Gemmological Tables (2004) More from other references   
Gemmological Tables (2004) More from other references   

Refractive Index
1.640-1.680   
1.653-1.693   

Optic Character
Not Available   
Not Available   

Crystal System
Amorphous   
monoclinic   

Birefringence
Not Available   
0.038-0.044   

Clarity
Gemmological Tables (2004) More from other references   
TransparentUlrich Henn and Claudio C. Milisenda   

Benefits >>
<< Physical Properties

Jet and Ludlamite Optic Character

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

Jet and Ludlamite Transparency

Similar to their colors, Jet and Ludlamite 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, Jet is Gemmological Tables (2004) More from other references while Jet is Gemmological Tables (2004) More from other references in appearance.

Capricorn Gems

Capricorn Gems

» More Capricorn Gems

Compare Gems for Capricorn

» More Compare Gems for Capricorn