  Crocoite.  
Description from the source: 
Crocoite (Pb Cr O4 mon.), Adelaide Mine, Dundas, Tasmania, Australia. Classic red orange elongated crystals on limonitic matrix. 7x4,5x3 cm; 72 g. 
Source: Simone Citon 
Contributor: John Gray 
Acquired: 30 September, 2008 
Text Updated: 1 October, 2008 
Price: Trade 
Size: 2.75" 
Composition: PbCrO4
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