  Wulfenite.  
Description from the source: 
Wulfenite (Pb Mo O4 tet.), Red Cloud Mine, Arizona, USA. Perfect crystal. 1,3x1,2x0,4 cm; 10 g with box. 
Source: Simone Citon 
Contributor: John Gray 
Acquired: 26 October, 2008 
Text Updated: 26 October, 2008 
Price: Trade 
Size: 0.5" 
Composition: PbMoO4
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