The Jaurdi Gold Project overlies a portion of the Bali Monzogranite immediately adjacent to the Jaurdi Hills-Dunnsville greenstone sequence, which in the south hosts the Jaurdi Hills mining centre and the Dunnsville mining centre towards the north. The Bali Monzogranite and Dunnsville Granodiorite/Doyle Dam Granodiorite to the north, together occupy the core of a gently north plunging anticline. M16/529 is located to the west of the anticlinal axis and immediately adjacent to the granite-greenstone contact.

The Bali Monzogranite is poorly exposed. The greenstone-granite contact is foliated where exposed. Shear zones developed locally within the adjacent greenstones, may continue within the granite. Gold mineralised palaeochannels are known in the Jaurdi Hills area, particularly to the west and south of the Jaurdi Hills mining centre.

Regional magnetic data suggest that the western portion of the project lies within a broad demagnetised corridor following the western contact of the Bali Monzogranite, and which may continue in a north-northwest direction through the greenstone sequence to Dunnsville. A magnetic dyke, akin to the Parkeston dyke in the Kalgoorlie area, has intruded this corridor. Another paired east-northeast magnetic dyke set is located immediately to the south of the project area. This dyke set is part of the regionally extensive Widgiemooltha Dyke Suite, and passes to the north of Kalgoorlie-Boulder.

Lost Dog
The Lost Dog tenements (M16/529, E16/469 & P16/2925 &2926), which make up the southern parts of the Jaurdi Gold Project, are located close to the western margin of the Bali Monzogranite immediately to the south east of the exposed Jaurdi Hills greenstone sequence. The tenements are entirely soil covered, with well-developed nodular carbonate increasing in intensity southwards towards an active contemporary drainage.

Recent drilling programs have revealed an extensive system of Au-bearing sand channels indicating that a major long-lived palaeo-alluvial system was present in the area. A typical profile consists of transported lateritic gravels overlying plastic clay zones, which in turn overly thick, water saturated silt and clay sequences with minor cobble layers. Drilling evidence suggests that younger, perched channels overly older channels, indicating that an anastomosing series of paleochannels are present over an east-west distance of at least 800 metres. Two horizons of mineralisation have been identified in the Western Arm with the shallower lode situated between 12 to 16 metres vertical depth, and the second horizon between 18 to 25 metres. The Eastern Arm has been identified by a system which has at least 850 metres strike (East – West orientated), is 175 metres wide and 8 metres deep; and appears open to the northeast and connects with the Western Arm.

Black Cat
The Black Cat tenements (M16/34 & M16/115) make up the northwestern parts of the Jaurdi Gold Project, with M16/34 hosting the abandoned Black Cat pit and remaining gold resources at Black Cat North and Black Cat South. These tenements cover predominantly mafic and ultramafic rocks to the immediate northwest of the Bali Monzogranite and exposure of these rock types is extensive, particularly in the central and northern parts of M16/34. M16/115 is completely covered by transported sediments associated with modern day and palaeo-drainages. In the Black Cat area the mafic-ultramafic sequence generally has a northwest-southeast trend with a number of shears and faults, which are sub-parallel to the regional stratigraphy. To the immediate east of the Jaurdi Hills mining centre and in the vicinity of Jaurdi Hill itself, the mafic-ultramafic sequence as a more northeast-southwest trend, where it bends around the Doyle Dam Granodiorite, located to the north. Gold mineralisation at the Jaurdi Hills mining centre is typically associated with narrow quartz-veined shears of various orientations and/or with sheared felsic porphyries/granitoids, again having various orientations. Both styles are hosted by mafic volcanics and to a lesser extent by ultramafic volcanics. The Black Cat gold mineralisation is one of the largest porphyry/granitoid-associated deposits within the Jaurdi Hills mining centre with a number of stacked southwesterly dipping, relatively flat-lying shears within the porphyry hosting the gold. A large porphyry/granitoid body intrudes weathered and fresh mafic volcanic rocks and is covered with approximately 15-25m of transported cover. The majority of the Black Cat gold resources are located within weathered porphyry/granitoid and sometimes the weathered mafic rocks (in situ regolith).

Panther
The primary ore lode at the Panther deposit is striking NW-SE, varyingly steep dipping 70°W shear zone, with a large scaled quartz vein stockwork associated with the gold mineralisation. A weathered profile exposed in Panther pit shows an upper saprolite and lower saprolite lithology suite including a high-magnesium basalt or ultramafic pyroxenite (multi-element to confirm) in proximity to basalt host rock.

The quartz veining stockwork is made up of vein sets regularly spaced approximately 5m apart, with horizontal and vertical sets ranging in thickness from 5cm to 40cm. The majority of mapped veins in the Panther pit are of 20-25cm thick on the footwallside of the shear and in proximity to the main NW-SE shear zone. The quartz veins deeper in pit are of increasing thickness, up to 40cm. Two other notable but smaller shear zones intersect the main shear zone entering from the west side of Panther pit.

A flat lying supergene enrichment zone is interpreted for both Northern and Southern extremities, where the Panther shear extends to surface. The supergene mineralisation varies in thickness between 1 and 6m.

Mining method at the Jaurdi Project is conventional open-pit. The Jaurdi Life of Mine is scheduled from 1st July 2021 – 30th June 2027 and includes the Lost Dog pit, existing stockpiles, and the Black Cat South pit.

Lost Dog
Mining method is conventional open pit with drill and blast, excavate, load and haul. The ore zone geometry coupled with the low stripping ratio (<2.5 (waste) to 1 (ore) and maximum pit depth (<32.5m) indicate that Lost Dog is most suited to mining by conventional open pit mining methods.

Black Cat South
Mining method is conventional open pit with drill and blast, excavate, load and haul. The ore zone geometry coupled with the low stripping ratio (11.3 (waste) to 1 (ore) and maximum pit depth (70m) indicate that Black Cat South is most suited to mining by conventional open pit mining methods.

Beacon envisages that load and haul activities will be undertaken by owner miner operators using a mixture of owned and dry hired equipment.

ROM ore will be blended through a mobile jaw crusher 1100mm x 900mm to provide feed for the semi-autogenous grinding (SAG) mill. Ore will be crushed to 150 - 180mm (typically 80% passing 100mm). Crushed ore will be fed to the SAG mill from a 200 tonne coarse ore bin discharging from a variable speed belt feeder controlled by a weightometer at a nominal 70 tph.

In 2019, the Beacon Minerals has been commissioning its 500,000 tpa gold processing facility at the Jaurdi Gold Project. Plant throughput and gold recoveries exceeding PFS parameters.

Increasing throughput:
- 500 kt pa equivalent in FY2020;
- 575 kt pa achieved in FY2021;
- On track for over 700 kt pa in FY2022.

All main elements that comprise the processing plant are typical of conventional CIP plants operating throughout the WA Goldfields. The treatment circuit has been designed to produce a grind P100 106µm and a leach retention time of 15 hours. The Company has made a financial provision for additional Leach Tanks if required.

Initially there was be no Gravity circuit and Gold Room installed at Jaurdi.
30 July 2021 - Major Infrastructure works during the quarter included the installation of a Gravity Circuit and Gold Room on the Jaurdi Processing facility. The major Gravity circuit components - Knelson concentrator and Acacia Leach Reactor.