Winmar Resources (ASX: WFE) together with Cazaly Resources (ASX: CAZ) have revealed positive results of metallurgical test work conducted by the Winmar Exploration Joint Venture (WEJV) at the Hamersley iron project in the Pilbara, Western Australia.
This metallurgical test work provides confidence that the material can be marketed and sold as direct shipping ore after dry crushing and screening the material, or additional de-sliming to further upgrade the product.
The test work used rock chip samples from the October 2012 Reverse Circulation drill program which resulted in an upgraded mineral resource of 343.2 million tonnes at 54.5% iron.
The aim of the test work was to further define product specifications of the shallow ore body in the southwest corner of the deposit, and for use in scoping studies to further understand project economics.
Head assay results from independent mineral processing consultant, Nagrom, indicate that the channel iron deposit grade is significantly higher and more consistent than material previously tested.
The simple dry crushing and screening of chip samples produced an average grade of 58.5% iron, with combined silica and alumina 13% and low levels of other impurities.
WEJV is planning a similar test work program using diamond core samples sourced from future pre-feasibility drilling to confirm these results and for a possible resource upgrade.