Beautiful grouping of Chalcopyrite, Pyrite, Quartz on matrix of Sphalerite. Has great appearance and in great shape. Good Peru mineral specimen. Size is 4.5 cm (1-3/4") wide  by 4 cm (1-5/8") deep  by 3 cm ( 1-3/16") high. Huallanca District,Dos De Mayo Prov.,Huanuco Dept., Huanzala Mine, Peru.