Brockman Mining has reported a 14% increase in the mineral resource of its Sirius deposit, which forms part of the Ophthalmia iron ore project near Newman, in the East Pilbara region of Western Australia.
The deposit is now estimated to comprise about 124 million tonnes (Mt), grading at 60.32% iron, of which 105Mt is classified as indicated.
Brockman said the mineral resource estimate incorporates the previously identified exploration targets at Sirius, almost all converted into mineral resources.
The company noted that no new exploration targets have been identified during the drilling programme or resource update.
Together with the previously revealed mineral resources for the Coondiner and Kalgan Creek Deposits, the total direct shipping ore mineral resources at the Ophthalmia project now stand at 305Mt, grading at 59.11% iron.
Brockman is planning to launch a feasibility study for a 15Mt a year direct shipping ore operation at Ophthalmia, which will be predicated on the company achieving a rail infrastructure solution for its Marilana project, situated about 80km from Ophthalmia.
The company said it will also investigate the potential for a smaller, interim road-haulage operation, based on the high-grade mineralisation at Sirius.
Brockman's hematite projects are situated in the Pilbara region, adjacent to the core tenements of Western Australia's other major iron ore developers.
The company's principal developments include the Ophthalmia project, the Marillana project and several other minor exploration projects in the area.
Brockman said that among all projects, the Marillana project is of the largest in scale with about 1.63 billion tonnes of hematite mineral resources.
Image: General location map of Ophthalmia iron ore project. Photo: courtesy of Brockman Mining.