Critical Minerals Group Limited announced the initial assay results received from drilling at its project, the Lindfield Project (EPM 27872). Lindfield Project Metallurgical Studies Brisbane Met Labs (BML): Material from the recent drill program on the Lindfield Project has been delivered to BML and metallurgical test work is underway. BML have been engaged by CMG to conduct the metallurgical test work on the Lindfield
Project mineralised samples to develop a flow sheet and undertake test work on the Lindfield Project's Vanadium deposit. Work will continue through the 1st half of 2023. BML are experts in processing and metallurgical test work and have been actively working on the Vanadium from the Toolebuc formation over the last 5 years. BML are progressing a Vanadium pilot plant which was awarded a $1.265 million grant from the
department of industry and resources. BML will build and commission a Vanadium pilot plant to allow processing of ore into Vanadium Pentoxide for the international Vanadium flow battery market. CMG intends to run the mineralised samples from the Lindfield Project through the pilot plant when operational in third quarter of 2023 (Grant Award View - GA205318: GrantConnect (grants.gov.au)). Initial Assay Results: 10 drill cores have now been assayed and initial results show both high grade intercepts of Vanadium as well as Alumina in the overburden material directly overlaying the seam and withing the Toolebuc Formation Shale unit (TLBD) seam. Standout V2O5 assay grades: LIND006: 14.6m - 15.15m @ 0.55% V2O5 - 15.15m - 15.52m @ 0.60% V2O5 LIND007: 17.06m - 17.45m @ 0.49% V2O5 - 17.45m - 17.85m @ 0.60% V2O5 - 17.85m - 18.29m @ 0.72% V2O5. LIND009: 24.18m - 24.77m @ 0.51% V2O5 - 25.25m - 25.90m @ 0.49% V2O5 - 25.90m - 26.35m @ 0.60% V2O5 - 26.35m - 26.88m @ 0.58% V2O5 - 26.88m - 27.30m @ 0.66% V2O5. LIND013: 9.1m - 9.6m @ 0.44% V2O5 - 9.6m - 10.05m @ 0.58% V2O5 - 11.77m - 12.07m @ 0.46% V2O5. LIND014: 10.82m - 11.3m @ 0.53% V2O5 - 11.3m - 11.5m @ 0.47% V2O5 - 11.5m - 11.7m @ 0.64% V2O5 - 11.7m - 11.87m @ 0.52% V2O5 - 11.87m - 12.02m @ 0.46% V2O5. LIND018: 11.54m - 11.88m @ 0.50% V2O5 - 11.88m - 12.12m @ 0.64% V2O5 - 12.12m - 12.35m @0.55% V2O5 - 12.35m - 12.55m @ 0.57% V2O5. LIND019: 9.05m - 10.05m @ 0.50% V2O5 - 10.50m - 11.00m @ 0.59% V2O5 - 11.00m - 11.25m @ 0.49% V2O5 - 11.25m - 11.50m @ 0.83% V2O5 - 11.50m - 11.67 @ 0.54% V2O5. - LIND020: 11.50m - 12.05m @ 0.56% V2O5 - 12.05m - 12.50m @ 0.58% V2O5. LIND021: 8.50m - 9.00m @ 0.51% V2O5 - 9.00m - 9.50m @ 0.56% V2O5 - 9.75m - 9.95m @ 0.69% V2O5 - 9.95m - 10.07m @ 0.56% V2O5. LIND022: 20.50m - 20.90m @ 0.52% V2O5 - 20.90m - 21.25m @ 0.51% V2O5. Intercepts of the mineralised zone, based on a sample cut-off grade of 0.30% V2O5 for respective drill holes are: LIND006 - 4.7 m thick, grading at 0.41% V2O5, 4.5% Al2O3%, from 13.3 m depth. LIND007 - 4.0 m thick, grading at 0.44% V2O5, 4.9% Al2O3%, from 16.0 m depth. LIND009 - 4.9 m thick, grading at 0.43% V2O5, 1.9% Al2O3%, from 23.2 m depth. LIND013 - 5.9 m thick, grading at 0.37% V2O5, 4.2% Al2O3%, from 8.1 m depth. LIND014 - 5.0 m thick, grading at 0.46% V2O5, 6.5% Al2O3%, from 9.2 m depth. LIND018 - 3.9 m thick, grading at 0.46% V2O5, 4.5% Al2O3%, from 10.1 m depth. LIND019 - 4.8 m thick, grading at 0.46% V2O5, 6.7% Al2O3%, from 9.0 m depth. LIND020 - 5.3 m thick, grading at 0.43% V2O5, 6.6% Al2O3%, from 10.1 m depth. LIND021 - 5.1 m thick, grading at 0.48% V2O5, 7.1% Al2O3%, from 7.4 m depth. LIND022 - 3.5 m thick, grading at 0.39% V2O5, 4.9% Al2O3%, from 19.4 m depth. Intercepts of the overburden HPA mineralised zone, for respective drill holes are: LIND013 - 1.5 m thick, grading at 17.1% Al2O3% from 2.4 m depth. LIND018 - 1.3 m thick, grading at 14.4% Al2O3% from 3.0 m depth. LIND019 - 1.0 m thick, grading at 18.9% Al2O3% from 1.8 m depth. Intercepts of the HPA mineralised zone within Toolebuc Formation Shale (TLBD), for respective drill holes are: LIND006 - 2.3 m thick, grading at 11.9% Al2O3% from 16.6 m depth. LIND007 - 2.5 m thick, grading at 11.6% Al2O3% from 18.7 m depth. LIND009 - 2.6 m thick, grading at 10.6% Al2O3% from 27.8 m depth. LIND013 - 2.2 m thick, grading at 12.6% Al2O3% from 12.5 m depth. LIND014 - 2.9 m thick, grading at 14.1% Al2O3% from 12.0 m depth. LIND018 - 2.2 m thick, grading at 11.1% Al2O3% from 12.8 m depth. LIND019 - 1.8 m thick, grading at 13.0% Al2O3% from 12.0 m depth. LIND020 - 2.8 m thick, grading at 12.7% Al2O3% from 13.0 m depth. LIND021 - 2.4 m thick, grading at 13.5% Al2O3% from 10.0 m depth. LIND022 - 2.3 m thick, grading at 10.4% Al2O3% from 21.7 m depth. Following completion of all the exploration program assays over the next few weeks, the results will be included to form the basis of an updated JORC Mineral Resource Estimate for the Lindfield Project. High Purity Alumina: The high-grade intercepts of Alumina provide confidence in commencing metallurgical studies on the potential for the Lindfield Project to be a dual commodity deposit. Additional assays will be used to potentially develop a JORC resource for the Alumina contained within the Lindfield Project and metallurgical studies have now commenced. Lava Blue: Lava Blue have been engaged by CMG to produce HPA at lab scale in order to demonstrate
the suitability of the Lindfield Project for HPA production. Lava Blue are a materials science company, with the objective of producing high value, high purity minerals for the battery industry. Lava Blue have developed processes for refining HPA from a range of materials including aluminium rich waste streams from mineral processing.
Lava Blue has developed a purpose built demonstration facility in Redlands in Brisbane's
South East to scale up production of HPA from laboratory scale to batch production suitable
for market testing and qualification. Should the laboratory work demonstrate the Lindfield
Project can support HPA production, process development work will move to the Redlands
facility. HPA is used for, rechargeable batteries in ceramic coated separators in batteries that improve
performance and safety of batteries, future technology in substrates for high performance
computer chips, along with global demand application in LEDs.
CMG hopes to develop a dual commodity mining project producing both Vanadium and HPA.
The studies undertaken by BML and Lava Blue are crucial to proving the Lindfield Project's
potential.