BlackEarth Minerals makes high-grade, large flake graphite concentrate from Razafy
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BlackEarth Minerals NL (ASX:BEM) has released an update on the initial metallurgical test work, completed on sample composites from the Razafy Resource.
The Razafy Resource sits within BEM’s broader Maniry Graphite Project which covers a total of 142km2 in southern Madagascar. The head grade of the master composite achieved 9% Total Graphitic Carbon (TGC) and the results obtained from the initial flotation tests, indicate the potential to produce high grade concentrates, in excess of 96% TGC.
According to London-based Benchmark Mineral Intelligence data graphite concentrates at this level can attract US$100-200 premiums over comparable flake size 90-95% TGC material.
This work was performed on diamond drill core samples as part of the 800kg bulk drill core which was sent to ALS Perth laboratories after BEM’s recently completed drilling program.
“These preliminary results provide additional hard data, that materials from the Razafy Resource produces a high-quality, large flake size product, which currently attracts a premium pricein globalgraphite markets,” Managing Director Tom Revy said of the news.
“This complements, and vindicates, our detailed mineralogical and petrological assessment carried out earlier this year. The company is now fast-tracking the Scoping Study due to be completed in December 2018 and looks forward to providing an update regarding the Company’s project.”
Key test work included:
- Testing 10 composites produced from 21 diamond drill holes from the Razafy Resource with head grades ranging from 8.04% to 9.39% TGC, including a Master Composite with a head grade of 9.00% TGC.
- Test work conducted on two comminution composites show low to moderate ore hardness and competency, which reflects the high depth of weathering and consequently has the potential to positively reduce processing costs.
- First pass metallurgical test work showed excellent results, with initial flotation tests on the Master Composite achieving high grade concentrate 96% TGC with recoveries above 90%.
The market for high-grade, large flake graphite
High grade graphite is essential to the production of lithium-ion batteries in electric vehicles while large flake graphite is a key component in the next generation of fire-retardant building materials. Both applications are forecast to experience significant growth in coming years.
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