By Business Reporter
DESERT Lion Energy has completed a maiden mineral resource estimate for its Namibian lithium project, the company announced last week.
The maiden mineral resource estimate comprised of Rubicon, Rubicon Slimes, Helikon 1, Helikon 2, Helikon 3, Helikon 4 and Helikon 5 deposits, and was based on assay and geological/mineralogical data generated from three phases of channel, pitting, diamond and reverse circulation drilling completed by the company since 2017. The estimate was based on 264 holes, totalling 21,400 m of drilling, and 49 pits totalling 104 m, and 65 channel samples.
“We are very pleased with the maiden mineral resource estimate as the results show the potential for the company to establish a significant pegmatite-hosted lepidolite lithium project.
“The project’s at or near-surface mineralisation, proximity to high-quality existing infrastructure and the low-cost operating environment in Namibia provide significant advantages as we continue to develop the project towards completion of the preliminary economic assessment,” commented Desert Lion CEO Tim Johnston.
The mineral resource was estimated using The Canadian Institute of Mining, Metallurgy and Petroleum (CIM) Best Practice Guidelines (2003) and is reported in accordance with the 2014 CIM Definition Standards, which have been incorporated by reference into National Instrument 43-101 – Standards of Disclosure for Mineral Projects (NI 43-101). The mineral resource is classified into inferred and indicated categories. Both hard rock and slimes mineral resources were reported.
The results are expected to enhance and support robust economics owing to the project’s proximity to high-quality existing infrastructure and the low-cost operating environment in Namibia.
Highlights of the estimate include three-million tonnes at a grade of 0.63 percent lithium oxide (Li2O) in the indicated category at a 0.20 percent Li2O cut-off, and 5.8-million tonnes at a grade of 0.53 percent Li2O in the inferred category at a 0.20 percent Li2O cut-off.
The Rubicon deposit remains open down dip, with potential to delineate additional deposits within the mining and exploration licences, the company said. With the positive results of the estimate, Desert Lion Energy intends to publish a preliminary economic assessment for the project before the end of this month.
The project is located in the southern central zone of the Damara Belt in which other deposits have been discovered and exploited. Included amongst these deposits are Li-Be, Sn and tourmaline-bearing Lithium Cesium Tantalite (LCT) type family pegmatites and U-bearing Niobium Yttrium Fluorine family pegmatitic leucogranites, which intrude into the tightly folded supracrustal rocks of the Damara Supergroup.
The pegmatites of the Damara Orogen occur in five major belts with those in the Southern Tin and Karibib Pegmatite Belts containing large, well zoned Li-Be- gem tourmaline bearing LCT type. The Karibib Pegmatite Belt contains numerous LCT occurrences and workings, with the Rubicon and Helikon pegmatites being classic examples of highly fractionated and well zoned LCT type pegmatites.
Confidente. Lifting the Lid. Copyright © 2015