Critical Resources Limited (ASX:CRR) has produced initial concentrate samples on metallurgical test work being undertaken by SGS Canada to determine the suitability of spodumene from the Mavis Lake Lithium Project in Canada for dense media separation processing.
Test Work Programme
To support a future scoping study, the company commissioned SGS to conduct basic heavy liquid separation (HLS) and magnetic separation test work program. The purpose of the test work is to determine the amenability of Mavis Lake Spodumene for dense media separation (DMS) processing. Mineralogical assessments will also be undertaken to better understand the presence and impact of deleterious minerals on final product quality and the mineralogical drivers of DMS processing efficacy.
In designing the sample suite for the test work program, focus was placed on representing the known Mavis Lake mineralized zone as accurately as possible. A total of 50 quarter and half core samples, from seven drill holes, were selected to provide a wide range of spatial locations, lithia grades, lithologies, spodumene intersection depths and also account for typical mining dilution.
The samples were delivered to SGS and compiled to create two composites, being a representative grade composite (SGS assays confirmed 1.2% Li2O) and a high-grade composite (SGS assays confirmed 1.6% Li2O).
The company received confirmation from SGS that the first series of test work has been completed on the high-grade composite. Test work on the representative-grade composite is due to commence shortly. Once all test work has been completed, final products will be assayed to determine concentrate grade, impurity profile and recovery/yield estimates.
The current test work programme will continue through to mid-February, with final results expected to be made available to the company towards the end of Q1 CY23.
The test work programme is a key step towards initial scoping study work for the Mavis Lake Project, the company will provide further updates on the next phase of development in the coming weeks.
“Critical Resources has firmly taken a step forward with its development plans for Mavis Lake. The outcomes of the metallurgical test work will directly support a scoping study and significantly assist us with planning our pathway to production,” Managing Director Alex Cheeseman said:.
“Whilst the full results from the test work will not be known until the programme is completed, initial indications are that the Mavis Lake spodumene is amenable to beneficiation via DMS processing.
“With a major drill campaign underway, our knowledge of the mineralisation and the characteristics of the Mavis Lake Main Zone continue to grow – setting the foundations for the next phase in this exciting project.”
For further information please visit: https://www.criticalresources.com.au/