A scoping study on the Arcadia lithium property in Zimbabwe outlined a series of open pits with production from the first pit expected to start mid-2017 and an estimated mine life of approximately 15 to 25 years, owner Prospect Resources Ltd. said in a Dec. 13 statement.
Measured, indicated and inferred resources included in the conceptual pit design total 23.4 million tonnes grading 1.42% lithium oxide, or Li2O, and 123 parts per million of tantalum pentoxide, or Ta2O5. The estimate uses a 1% Li2O cutoff.
The company noted that 70% of the resource is in the measured and indicated categories, with 30% classified as inferred. Additional infill drilling is planned, aiming to upgrade inferred resources to the indicated category.
Prospect Resources also said that the extraction of Ta2O5 was not incorporated into process flow sheets and plant design.
The company posted an initial resource for the Arcadia property in late October, totaling 36.4 million tonnes grading 1.17% Li2O and 107 ppm of Ta2O5.
Prospect Resources is in discussions related to potential off-take agreements for the project and has secured initial environmental approvals. Metallurgical testing is also ongoing.