1066 Galena, Sphalerite, Broken Hill Mines, New South Wales, Australia

Cream secondary sphalerite and secondary galena from the “watercourse”, Browne’s shaft, Broken Hill New South Wales, Australia. The specimen shows colloform internal structure. Collected in the mid- 1970’s. These are often mis-labelled “Wurtzite”, though it’s possible there are traces of this mineral present. The specimen fluoresces yellow under long wave UV. 85x50x40mm.