Iron mineralisation at the Razorback and Ironback Hill Deposits are hosted in the Braemar Iron Formation. The formation can be best described as a meta-sedimentary iron siltstone, not a typical Banded Iron Formation (or BIF). This ore type is inherently soft as opposed to the very hard BIF’s as common in Western Australia. The Razorback Deposit area covers an approximately 10 km continuum of Iron Prospects: Razorback West- Razorback Ridge-Interzone-Iron Peak Prospects with much strike-length not yet tested here.

The mineralisation within the Braemar Iron Formation forms a simple dipping tabular body with only minor faulting, folding and intrusives. Grades, thickness, dip, and outcropping geometry remain very consistent over kilometres of strike.

The head grade of the iron ore (before processing) ranges from 15-35% Fe, with the Razorback Project capable of producing up to ~69% Fe concentrates (after processing) (see ASX Announcement on 13/09/16).

The iron species contained within the ore is predominantly magnetite, with lesser amounts of hematite. Magnetite, as its name implies, is a naturally magnetized mineral. Given it’s magnetic properties, magnetite is easily separated via several processing options. This processing rejects gangue minerals producing a very high-grade Fe product with low silica and deleterious elements, very much sought after in steelmaking.

Updated November 2018