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Vivianite
Linarite
Linarite and Vivianite Optical Properties


Optical Properties
Luster
Vitreous, Pearly   
Sub-Adamantine, Vitreous   
Pleochroism
Anomalous plechroism is strong with colours deep blue/pale yellowish green/yellowish green.Michael O’Donoghue   
X = pale blue; Y = blue; Z = Prussian blue   
Dispersion
Not Available   
Not Available   
Transparency
Transparent   
Transparent   
Refractive Index
1.560-1.640   
1.809-1.859   
Optic Character
Not Available   
Not Available   
Crystal System
Not Available   
monoclinic   
Birefringence
0.054-0.075   
0.050   
Clarity
Transparent   
Transparent   
Benefits >>
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