  Vanadinite.  
Description from the source: 
Vanadinite (Pb5 (VO4)3Cl hex.), Apache Mine, Arizona, USA. Little but evident reddish crystals on solid matrix. 7,5x4x2 cm; 43 g. 
Source: Simone Citon 
Contributor: John Gray 
Acquired: 28 January, 2009 
Text Updated: 29 January, 2009 
Price: Trade 
Size: 3" 
Composition: Pb5(VO4)3Cl
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