Berkeley Energia (BKY.L, BKY.MC) on Tuesday reported the results of its maiden mineral resource estimate at its 100%-owned Conchas critical minerals project in Spain.
The preliminary metallurgical testing showed shallow, thick zones of lithium and rubidium mineralization, with accessory tin, caesium, beryllium, niobium and tantalum, the mining company said in a same-day filing.
The mineral resource estimate demonstrated 11.8 metric tonnes at 0.41% of lithium oxide and 0.21% of rubidium oxide. The company also noted that the project is amenable to bulk-tonnage, open-pit mining.