The Nolans Bore deposit is spatially close to several tin and tantalum pegmatites, and REE-bearing carbonatite/alkaline complexes (Mud Tank and Mordor Igneous Complex). This mineral field of carbonatites, pegmatites, and other REE occurrences is in a region transacted by three major lineaments delineated by O’Driscoll, which include the north–northwest trending G2-gravity lineament that is considered to be spatially related to the Olympic Dam deposit and northwest-trending G3-gravity.

The mineralisation at the Nolans Bore deposit is hosted in a series of east-northeast trending, and steeply dipping to the northwest, fluorapatite veins and breccia zones. The granite-gneiss host has been strongly kaolinised due to weathering.

Huston et al. (in press) describe four styles of mineralisation: massive fluorapatite veins that typically contain 4–6% REE oxides and constitute most of the defined resource; very high-grade (7º–10% REE oxide) zones found in cheralite-bearing, apatite-poor kaolinitic zones outside of the veins; apatite allanite epidote zones hosted by calc-silicates; and low-grade stockwork zones in gneiss and kaolinitised rock adjacent to the veins and mylonite zones.

Mining will be carried out using typical drill and blast operations, hydraulic excavator(s) and rear dump trucks. The strategic mining schedule is based on an average mining rate for the first seven years of 3.2 Mt per annum, average over the duration of mining of 7.6 Mt per annum, with a maximum rate of 11.2 Mt per annum. Ore from the run of mine (ROM) pad will be blended into road haulage trucks and trucked the 8.5 kilometres to the process plant for direct tipping into the crusher.

Ore from the ROM pad will be transported approximately 8.5 kilometres south to the process plant. The design for the DFS includes the following areas:
• Comminution and Beneficiation – ROM ore will be crushed, milled and beneficiated using flotation to produce a concentrate, which will be fed into the extraction plant, and tailings, which will be sent to the Residue Storage Facility (RSF).
• Extraction Plant – Hydrometallurgical processing area which will consist of all the unit operations that separate the rare earths from gangue minerals and produce an MGA phosphoric acid byproduct, a cerium hydroxide product, and a rare earth chloride liquor which will be fed into the separation plant.
• Separation Plant – Solvent extraction facility and product handling area which will separate the final NdPr oxide product from the mid-heavy rare earth (SEG/HRE) carbonate product.
• Reagents – A general reagents handling and storage facility will be incorporated as well as a modular sulphuric acid plant (with one module installed during pre-production and the remaining two modules installed during the first two years of operation). A chlor-alkali plant to produce hydrochloric acid and sodium hydroxide will be installed during years six and seven of operation with bulk reagents imported to site prior.
• Services and Utilities –Includes raw water and other water services, power generation, steam
generation, natural gas supply and distribution, and compressed air. The beneficiation plant and associated equipment is designed to process a maximum of 1.0 Mtpa of ore. This is to cater for variation in ore grade over the life of mine.