Spark Energy Expands Priority Targets Over a Combined 31km Pegmatite Trend at the Arapaima Lithium Project
To date, 19 old mining excavations have been identified and mapped by Spark's geological team. These areas are all focused on pegmatite occurrences with evidence for prior exploitation of gemstones ...
SciELO3d
Recovery of gold from refractory ore employing pressure oxidation
The analyses performed by SEM and EDS identified gold particles in the +150 μm fraction, one of them being large and associated with arsenopyrite and some small dispersed in muscovite ... 6. The ...