ASX:RXL
ASX:RXL
Following the Company’s 50,000m drill campaign at Youanmi, Rox announced the July 2025 Mineral Resource Estimate (“MRE”) of 2.2Moz @ 5.6 g/t Au (Indicated & Inferred), positioning Youanmi as one of the highest-grade, emerging gold projects in Australia. The drill program also identified numerous near mine brownfield targets including Interceptor, Bunker Midway and Paddy’s Lode.
The Midway lode is situated approximately 400 metres west of the Youanmi Gold Deposit and comprise a series of moderately to steeply west–southwest dipping shear zones striking at approximately 300°. Gold mineralisation is primarily hosted within sheared zones of carbonate-altered komatiitic basalt and ultramafic units, with sympathetic mineralised shears developed within discrete mafic schist and banded iron formation horizons.
The mineralised shears remain open down-dip and along strike to the south, highlighting potential for further extensions through additional drilling and geological investigation.
Significant intercepts to date include:
| RXDD048 | 6.8m @ 15.4 g/t Au from 169.1m |
|---|---|
| RXDD047 | 2.9m @ 22 g/t Au from 356.4m |
| RXDD225 | 4.1m @ 14.9 g/t Au from 330.9m |
| RXDD074 | 5m @ 11.8 g/t Au from 88m |
| RXRC449 | 6m @ 9.6 g/t Au from 215m |
Paddy’s Lode is located approximately 300 metres southwest of the Youanmi Gold Deposit and forms part of the broader mineralised corridor associated with the Youanmi Greenstone Belt. Gold mineralisation is interpreted to be hosted within steeply to moderately west–southwest dipping shear zones, characterised by strong silica–sericite–pyrite alteration. The host rock stratigraphy comprises tholeiitic basalt with subordinate dolerite.
Mineralisation at Paddy’s Lode remains open down-dip, along strike and further drilling is warranted to evaluate the potential for extensions to grade and continuity. Additional drilling will also aim to enhance the geological and structural understanding of the lode system, providing improved definition of mineralisation controls and geometry.
Significant intercepts to date include:
| RXRC458 | 25m @ 38.9 g/t Au from 204m |
|---|---|
| RXRC024 | 13m @ 3.2 g/t Au from 97m |
| YP1416 | 10m @ 3.0 g/t Au from 79m |
| RXDD080 | 2m @ 31.6 g/t Au from 235.6m |
| RXDD106 | 3m @ 19.8 g/t Au from 264.3m |
The Interceptor Lode is located immediately west of the Youanmi Gold Deposit and trends north–northwest over a defined strike length of approximately 300 metres. Drilling completed to date indicates that gold mineralisation is hosted within shear zones of silica–sericite–pyrite alteration developed within a high-iron tholeiitic basalt–dolerite sequence. The lode exhibits a moderate to steep west–southwest dip and remains open both down-dip and along strike to the south. Current drilling has confirmed mineralisation to a vertical depth of approximately 320 metres below surface, with potential for further extensions at depth and along strike.
Significant intercepts include:
| RXDD123 | 11m @ 15.4 g/t Au from 89m |
|---|---|
| RXDD024 | 14m @ 4.7 g/t Au from 56m |
| RXRC380 | 2m @ 4.78 g/t Au from 94m |
| RXDD115 | 24m @ 6.16 g/t Au from 86m |
| RXDD112 | 11m @3.73 g/t Au from 72m |
The Bunker Deposit is located approximately 800 metres southwest of the Youanmi Gold Deposit and is hosted along a north–northwest trending structural corridor. Historical open-pit mining of supergene-enriched oxide material was undertaken during the early 1990s. At that time, the deposit was reported to contain a pre-mining resource estimate of 184,000 tonnes at 3.2 g/t Au (18,930 ounces) and a proven ore reserve of 71,000 tonnes at 3.7 g/t Au (8,446 ounces).
Gold mineralisation along the Bunker trend is associated with shear-bound laminated quartz–carbonate–sulphide veining that typically dips steeply to the west–southwest. The local stratigraphy comprises high-iron tholeiitic basalt with subordinate banded iron formation and mafic schist units, underlain by komatiitic basalt sequences to the east.
Recent diamond drilling has identified a mineralised hanging-wall shear zone parallel to the main Bunker trend, which returned an intercept of 5.3 metres at 6.34 g/t Au from 84.2 metres in hole RXDD228.
Following the consolidation of the Youanmi Gold Project, Rox now retains 90 –100% of the gold interest over the regional exploration tenure. Rox’s tenure holding equates to 643km2 and more than 60km of strike along the Youanmi Shear Zone (YSZ). The YSZ is demonstrated to host extensive high-grade gold occurrences (notably Youanmi mine, Ramelius’ high-grade Penny West deposit) and is highly fertile in gold endowment and represents an area of high prospectivity for Rox.
Rox has commissioned a regional airborne magnetic infill survey with MAGSPEC Airborne Surveys Pty Ltd supported by geophysical consultants Newexco Exploration Pty Ltd. The fixed-wing airborne magnetic survey is designed to upgrade the magnetic dataset over the Youanmi mine site and provide a full dataset covering Rox tenure along the Youanmi shear zone. Historical and existing datasets form a patchwork coverage consisting of small, isolated, high-resolution datasets of variable vintage and quality overlying low-resolution government acquisition.
The survey has been designed to reduce regional line separation to 50m over more than 100km of continuous licence holding along the belt. At the local scale of the Youanmi deposit, the Magspec system will fly at a nominal 30m height and infill at 25m line separation along the highly prospective mine trend. Once processed, the merged dataset will have significantly enhanced resolution allowing for improved structural interpretation at both mine and regional scale and form the basis for ongoing exploration targeting. The new dataset will be integrated into the geological model and help decipher areas of high structural complexity, unraveling the Youanmi deposit and generate regional gold targets.
In 2019 and 2020, Venus Metals Corporation (VMC) completed RC drilling programs that intersected multiple zones of high-grade gold mineralisation across the Currans North, Red, White and Blue, and Sovereign prospects, confirming the continuity and potential for further extensions of these lode systems.
Gold mineralisation at Currans North is hosted within northeast-trending, shear-bound quartz–sulphide vein system that dip sub-vertically to steeply southeast. The mineralisation is interpreted to plunge moderately (approximately 30°) towards 206°, extending south–southeast down-plunge. The current defined strike extent of mineralisation is approximately 300 metres.
Recent diamond drilling has successfully extended gold mineralisation down-plunge and provided significant structural insights into the geometry and orientation of the Currans North lodes. Mineralisation remains open along strike to the north, and both down-dip and down-plunge, highlighting potential for further extensions through continued drilling.
Significant intercepts at Currans North include:
| CFRC016 | 4m @ 20.7 g/t Au from 39m |
|---|---|
| CFRC031 | 4m @ 18.9 g/t Au from 108m |
| CFRC026 | 6m @ 16.5 g/t Au from 115m |
| RXRC511 | 3m @ 7.2 g/t Au from 148m |
| RXDD228 | 3m @ 1.53 g/t Au from 184.6m |
The Red, White and Blue Prospect is located approximately 200 metres south of the Currans North trend and exhibits a similar north–northeast structural orientation. The mineralisation style and structural setting at Red, White and Blue are consistent with those observed at Currans North, with gold hosted within shear-bound quartz–sulphide veining.
Recent diamond drilling has returned a best intercept of 3.0 metres at 19.05 g/t Au from 57.7 metres, including 0.7 metres at 61.6 g/t Au from 57.7 metres. The drilling program was designed to refine the understanding of structural controls on high-grade mineralisation within the prospect area. Gold mineralisation is associated with steeply southeast-dipping shear zones hosting laminated quartz veining, with mineralisation interpreted to plunge moderately towards the east–northeast.
Significant intercepts at Red, White and Blue include:
| CFRC051* | 9m @ 3.27 g/t Au from 35m |
|---|---|
| CFRC081* | 3m @ 5.37 g/t Au from 126m |
| CFRC006* | 6m @ 3.32 g/t Au from 35m |
| 5YMR0077* | 7m @ 5.4 g/t Au from 25m |
| RXDD224 | 3m @ 19.04 g/t Au from 57.7m (including 1m @ 61.6 g/t Au from 57.7m) |
Rox Resources Limited has interpreted a 2-kilometre east-northeast (ENE) trending mineralised corridor encompassing areas of historical exploration drilling. A large, relatively untested central zone within this corridor has been identified as a priority target for follow-up drilling.
Gold mineralisation at both the Currans North and Red, White and Blue prospects is associated with elevated copper and lead values — a geochemical signature consistent with the style of mineralisation observed at the Penny West Gold Mine, located approximately 5 kilometres to the southeast. These base-metal associations provide a useful vector for delineating and mapping gold-bearing structures along the broader mineralised trend.
The Currans North and Red, White and Blue prospects collectively host an Indicated and Inferred Mineral Resource of 22,000 ounces at 3.81 g/t Au (refer ASX announcement dated 23 June 2021). In addition to the defined exploration targets along the mineralised corridor, further drilling is planned to expand the existing resource base, with a focus on testing down-plunge and along-strike extensions of high-grade mineralisation.
The Sovereign Prospect is located approximately 1 kilometre east of the Currans Find Project. Gold mineralisation occurs within multiple steeply dipping quartz lodes that strike north-northwest and are hosted within basalt and mafic schist units. Similar to other Currans prospects, anomalous gold values are commonly associated with elevated base metal concentrations.
No Mineral Resource has been defined for the prospect to date. However, further exploration is warranted to evaluate the strike continuity and test down-dip and down-plunge extensions of the known mineralisation, with the objective of delineating a potential Mineral Resource.
Significant results to date
| YSRC014 | 7m @ 4.91 g/t Au from 155m (including 2m @ 15.83 g/t from 160m) |
|---|---|
| YSRC010 | 7m @ 3.97 g/t Au from 59m |
| YSRC010 | 13m @ 2.91 g/t Au from 79m |
| YSRC005 | 3m @ 6.61 g/t Au from 78m |
The Pincher Well Project is located approximately 16km south of the Youanmi Mine site and contains an extensive sequence of hydrothermally altered rocks being prospective for volcanogenic massive sulphide mineralisation, gold, and platinum group elements.
The project covers a dome incorporating a sequence of chloritized felsic volcanics, flanked by exhalative BIF and sulphidic chert horizons. Drilling has identified extensive, non-outcropping, dolerite and gabbro. Fine grained mafic intrusive dykes and apophyses commonly intrude the felsic rock.
Two main types of potentially economic mineralisation are present, being gold mineralisation and base metal Zn/Cu mineralisation. The two types of mineralisation have their own distinct geological characteristics. The zinc mineralisation is hydrothermal and was deposited concurrently with an exhalative BIF unit. The gold mineralisation appears unrelated to the zinc mineralisation and probably related to later faulting, though it must be noted that it is normally the case in hydrothermal/epithermal systems that base metal sulphides occur at depth while Au, Ag, As and Sb comprise a near surface suite.
At the Pincher Well project, companies including WMC and BHP undertook exploration involving mapping, drilling, and geophysics, but this exploration focused almost exclusively on base metals, largely neglecting the gold potential. Nonetheless, gold drill intersections are identified such as: PW0062, 2.71m @ 5.60g/t Au from 128.78m (ASX: VMC announcement 25 August 2017) and GVRC004, 1m @ 5.21 g/t Au from 47m (ASX: VMC announcement 5 September 2019).
At Pincher Well, Rox has planned a series of targeted RC drill holes that are designed to expand and develop the size of the deposit.
The Linda Gossan Prospect is located approximately 14km south of the Youanmi Mine site within tenement E57/1019. The prospect is underlain by a sequence of felsic lavas and tuffs, and chert and BIFs, all intruded by mafic to intermediate sills.
Linda Gossan was discovered in 1971 and since then companies including WMC and BHP have undertaken exploration involving limited drilling. Over this period of historic exploration, the exploration focused was almost exclusively on base metals, and largely neglecting the gold potential.
More recently, RC drilling by VMC during 2022 intersected a hugely significant gold mineralisation result of 9m @ 15.6 g/t Au from the surface in drill hole VMC054 (ASX: VMC announcement 10 October 2022).
Given the recent significant, wide and high-grade drill intercept from VMC054, within an area with very limited true gold exploration, this prospect represents a one of Rox’s highest priority targets.
An exploration program has been planned to geologically map the area to improve the structurally understanding of the prospect area prior to targeted drill testing.
This page was last updated on 21 November 2025.
Please note: these pages may include information that relates to Exploration Results or Mineral Resources prepared and first disclosed under the JORC Code (2012). This information was extracted from the Company’s previous ASX Announcements, which can be viewed in the Investors section of this website by clicking here.