Robuta

https://catalog.data.gov/dataset/electron-microprobe-analyses-of-sphalerite-and-hemimorphite-from-mine-wastes-from-the-tar- Department of the Interior - Electron microprobe analyses of sphalerite and hemimorphite from mine... Electron microprobe analyses of sphalerite (ZnS) and hemimorphite (Zn4Si2O7(OH)2·H2O) from sampled historical waste piles were conducted with a specific focus... of theelectron microprobedepartmentinterioranalyses