This Galena Cluster from Peru is sitting on a Quartz Cluster, with both the Galena and Quartz Points are dusted with orange Orpiment. ( An Arsenic Sulfide/Realgar). Galena is a Lead Sulfide, Orpiment/Realgar an Arsenic Sulfide, used for centuries by Taoists for alchemy.This Cluster is 2.20 lbs, and 7"X5". Beyond powerful. New.