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Ludlamite and Ammolite Optical Properties


Ammolite and Ludlamite Optical Properties


Optical Properties

Luster
Vitreous, Pearly  
Silky, Vitreous  

Pleochroism
-  
None  

Dispersion
0.02  
99+
0.01  
99+

Transparency
-  
-  

Refractive Index
1.653-1.693  
1.520-1.670  

Optic Character
-  
-  

Crystal System
monoclinic  
Trigonal  

Birefringence
0.038-0.044  
0.135-0.145  

Clarity
TransparentUlrich Henn and Claudio C. Milisenda  
-  

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Ludlamite and Ammolite Optic Character

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

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Ludlamite and Ammolite Transparency

Similar to their colors, Ludlamite and Ammolite 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, Ludlamite is while Ludlamite is in appearance.

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