This specimen is just a mess of sulfides, though a pretty mess.
I cannot tell in what order the various species deposited, except that there was initially a bed of quartz crystals, and lastly a druzing of seligmannite. The galena, realgar, pyrite, and sphalerite are all jumbled together. Despite being such a mess, it really does look quite nice though.
The Palomo Mine was officially closed sometime in the late 1990's, though around 5 years ago a team of artisanal miners began to re-work the location for specimens.
Among the first specimens to be found were the realgars, which represents the best examples of the species to come from Peru. Well crystallized orpiment has long been known from the country but it was not until this find that it produced good realgar.
This locality was featured in the March-April 2008 issue of the Mineralogical Record.