Ramsbeckite
Cu15(SO4)4(OH)22·6H2O
Locality:
Veneziana Gallery, Monte Trisa Mines, Mercanti Valley, Torrebelvicino, Vicenza Province, Veneto, Italy
1 mm green-emerald Ramsbeckite crystal (the grey material are the play dough).
Photo Matteo Chinellato
Rarely formed by supergene oxidation in dump materials and slag.












