Zn2(AsO4)(OH)
This sample of paradamite is displayed in the Smithsonian Museum of Natural History. Paradamite is an arsenate of zinc  with the composition Zn2(AsO4)(OH).  The sample at left is about 8 cm across and is from Ojuela mine, Mapimi, Durango, Mexico. It is described as paradamite with legrandite.  
Mindat describes paradamite as a dimorph of adamite. 
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