Name and Location
Eagle Island iron project, Ontario, Canada.

Client
Rockex Mining.

Project Description
The Eagle Island project has an indicated resource of 1.287-million tonnes grading 28.39% iron and an inferred resource of 108-million tonnes at 31.03%.

A preliminary economic assessment (PEA) on the Eagle Island project has confirmed its strong economic potential.

The PEA envisages an openpit mine producing six-million tonnes a year of iron concentrate at a grade of 66.3% iron.

The mining method is a conventional openpit drill-and-blast operation, using rigid frame haul trucks with a 218 t payload, and hydraulic shovels.

The pit design and mine plan have been limited to a 30-year mine life, although the pit optimisation shows that there are sufficient resources for a longer period.

The designed pit includes 512-million tonnes of mineral resources, with an average grade of 28.9% iron and a stripping ratio of 0.51:1.

The pit will be developed in three phases to defer the construction of dykes and lake dewatering until after the start of mining operations.

A causeway to access the pit will be constructed between Eagle Island and the south shore of St Joseph lake.

An average run-of-mine feed of 17.3-million tonnes a year is required, assuming a mill recovery of 80%.

The concentrator will be located adjacent to the Eagle Island causeway. Mined mineralised material will be crushed using a gyratory crusher before being transported to the processing plant.

The process will comprise a semiautogenous and ball mill grinding circuit producing a P80 product of 88 µm; gravity separation; tertiary grinding using ball mills operating in a closed loop with cyclones producing P80 product of 27 µm; and low-intensity magnetic separators and desliming thickeners.

Concentrate will be thickened to 65% solids prior to being pumped to the dewatering, product storage and rail-car loading facilities, located at Sioux Lookout.

Tailings will also be thickened before being pumped to the tailings pond.

Final concentrate will grade 66.3% iron and 5.23% silica.

The facility, located at Sioux Lookout will receive the concentrate through a pipeline, where the material will undergo slurry reception, filter presses, rotary dryers, stockpiling and rail-car loading.

The stockpile reclaim and rail-car loading system has been designed to operate at 3 000 t/h.

Excess water will be sent to a clarifier pond.

Value
$1.56-billion.

Duration
Not stated.

Latest Developments
None stated.

Key Contracts and Suppliers
None stated.

On Budget and on Time?
Not stated.

Contact Details for Project Information
Rockex Mining, tel +1 807 623 0661, fax +1 807 623 4221 or email info@rockexmining.com.