Metallurgical Test Work
On 29 November 2019, Hawkstone Mining announced the results of the preliminary metallurgical test work, completed on a limited number of core samples from the Big Sandy lithium project, located in Arizona, USA. The testing program followed a successful maiden drill program and was purely designed as proof of concept that lithium could be extracted from the Big Sandy fresh material through the use of sulphuric acid as a metallurgical process.
The preliminary test work program proved highly successful, as samples recorded lithium recoveries of between 85% to 97%, during a maximum leaching time period of 24 hours. Following the success of this initial program, the Company will continue to further optimise the results on a wider range of samples, with the aim of reducing acid consumption and leaching time.