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Phosphosiderite
Crocoite
Crocoite and Phosphosiderite Optical Properties


Optical Properties
Luster
Vitreous  
Adamantine  
Pleochroism
Pale rose-red carmine-red colorlessAnthony et al  
Distinctly trichroic  
Dispersion
0.04  
36
0.02  
99+
Transparency
Transparent  
Transparent  
Refractive Index
1.692-1.739  
2.31-2.66  
Optic Character
-  
-  
Crystal System
-  
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/n  
Birefringence
0.240  
-9999  
Clarity
Transparent  
Transparent  
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