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Altura Mining increases lithium reserves, resources at Pilgangoora

Altura Mining Ltd. on Jan. 30 reported updated reserve and resource estimates for its Pilgangoora lithium property in Western Australia, with reserves increasing 48% and indicated resources increasing 32%, in terms of tonnage.

The company also noted that 75% of indicated resources were upgraded to reserves.

Reserves increased by 9.8 million tonnes to 30.1 million tonnes grading 1.04% lithium oxide, for 313,000 tonnes of contained Li2O in the probable category.

Indicated resources increased by 9.7 million tonnes to 40.3 million tonnes grading 1.0% Li2O, while inferred resources now stand at 2.3 million tonnes grading 0.90% Li2O.

The updated JORC-compliant estimate incorporates data from infill drilling and drilling at depth and uses a cutoff grade of 0.43% Li2O. The previous estimate was completed in September 2016.

A definitive feasibility study on Pilgangoora described a single open-pit mining operation at Pilgangoora with a throughput rate of 1.54 million tonnes per annum to produce an average 219,000 tonnes of 6% Li2O spodumene concentrate.