Marra Mamba Tiger Eye

Mt Brockman Tiger Eye is situated on the Nammuldi Ridge within the West Pilbara Mining Field, Pilbara Region, Western Australia. The terrain is characterised by ironstone-capped mesa formations and Precambrian banded iron formations (BIF) hosting the prized Marra Mamba Tiger Eye seams. Elevation changes across the ridge create drainage complexity. Ambient conditions include extreme thermal cycling (+45°C summers), and pervasive red fine-dust (ferruginous particulate) that accelerates abrasive wear on all mechanical and filtration assets deployed on site.

The operation is classified as active/operating, focused on selective artisanal-to-small-scale surface extraction of gem-grade tiger eye material. Operational continuity depends on rotational FIFO/DIDO rosters coordinated from Newman or Tom Price. Given the remote station-track access, personnel logistics require robust scheduling, light vehicle fleet management, and self-sufficient camp support infrastructure. Supply chain lead times for consumables, PPE, and replacement wear parts are extended due to distance from Karratha or Perth distribution nodes.

Extraction methodology prioritises selective manual and mechanical disaggregation to preserve gem integrity — avoiding conventional blasting circuits that would fracture the tiger eye silicification. Primary size reduction relies on low-impact mechanical separation rather than high-tonnage grinding circuits. Abrasion-resistant components (liners, screens, conveyors) face accelerated degradation from the silica-rich, ferruginous host matrix. Dust suppression systems and high-efficiency particulate filters are operationally critical across all mobile and fixed plant assets exposed to the fine red-dirt environment.

As a small-scale gem operation, Mt Brockman Tiger Eye carries a comparatively contained environmental footprint, yet remains subject to Western Australian DMP rehabilitation obligations and progressive land-disturbance bonding. Waste rock and fine tailings management must comply with state-mandated tailings storage and containment protocols, even at artisanal scale. The value chain is direct: run-of-mine gem material is sorted, graded, and supplied to lapidary and B2B wholesale markets. ESG differentiation is anchored in provenance traceability — Marra Mamba Tiger Eye commands premium positioning as a certified Australian-origin gemstone.