Formula: Au Summary extracted from Alfredo Petrov’s Encyclopedia: Summary of Occurrence The Encyclopedia does not contain a dedicated entry for Native Gold. However, information about its occurrence can be compiled from mentions within the descriptions of other minerals. Based on this data, native gold and its natural alloy, electrum, are...
Formula: (Cu,Zn,Fe)3(In,Sn)S4 From Alfredo Petrov: SAKURAIITE (sakurai-koh) Above: Sakuraiite, stannite, chalcopyrite, sphalerite, Ikuno Mine, Hyogo Prefecture, Japan. Width of view 14mm. Greenish-grey sakuraiite (running from top right to centre left) with mostly darker stannite, yellow chalcopyrite, and, under UV, sphalerite towards the top left. Ex Minerals Unlimited (old label). Ex...
