1. 
   Goslarite
   Goslarite is a hydrous zinc sulfate mineral with formula: ZnSO4·7H2O. It is a secondary mineral which develops after primary zinc minerals within the zone of oxidation and in old sphalerite mine workings. It is unstable at the surface and dehydrates readily. It is transparent to translucent and va...
   Found op http://en.wikipedia.org/wiki/Goslarite
   
   
2. 
   Goslarite
   Goslarite (white vitriol) is hydrated zinc sulphate. It is a rare mineral precipitated from water seeping through the walls of lead mines and is formed by the decomposition of sphalerite.
   Found op http://www.probertencyclopaedia.com/browse/HG.HTM
   
   

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