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Rumble Resources Limited (ASX: RTR) (“Rumble” or “the Company”) is pleased to announce the discovery of high- grade tungsten from diamond core drilling at the Western Queen South deposit. Systematic pXRF analysis of drill hole WQDD013 led to ultraviolet scanning which highlighted very significant zones of scheelite. Wet analysis of the main visible scheelite zone has confirmed the discovery as very high-grade tungsten skarn style mineralisation.
Highlights
- Recent diamond drilling has discovered exceptionally high-grade tungsten (scheelite) mineralisation within the Western Queen gold system
- Drill-hole WQDD013 returned:
- 4m @ 4.58% WO3, 0.72 g/t Au from 174.85m; including
- 2.05m @ 8.71% WO3, 1.38 g/t Au from 176.85m; and
- 0.65m @ 18.35% WO3, 2.97 g/t Au from 176.85m
- Strong continuous tungsten anomaly outlined over 2km from drillhole XRF data parallels the Western Queen Shear and known high-grade gold mineralisation
- Tungsten occurs at surface between the Western Queen South and Western Queen Central open pits with widths up to 20 metres
- Follow up wet assays for tungsten of selected pulps from RC drilling which formed part of the 2021 mineral resource estimate at Western Queen have been submitted and will be reported when available
- Tungsten is considered a critical and strategic material in world economies due to its economic importance, supply risk and limited substitution options
In addition to the assaying, ultraviolet scanning of the diamond core from WQDD013 has highlighted scheelite within altered mafic. The mineralisation is essentially scheelite-pyroxene +/- magnetite+/-gold skarn zones 2.1Mt @ 2.42 g/t Au for 163,200oz 1
Figure 1 shows the white-blue fluorescence characteristic of scheelite under ultraviolet light. Mineralisation comprises of massive aggregates of white (visible light) grains (up to 5mm) of scheelite paralleling the dominant foliation within the shear zone.
Figure 1 – WQDD013 (0.65m @ 18.35 WO3) scheelite intersection under UV light*Analysis by pXRF is indicative and may not represent the true grade of tungsten
Of great significance is the subsequent review of all of the pXRF data routinely collected by Rumble which has shown tungsten is widespread within the Western Queen gold mineralising system.
Peter Harold, Managing Director and CEO commented“the discovery of the very high-grade tungsten at Western Queen is an unexpected bonus for us from the recent drilling which was targeting extensions to the high-grade gold lodes. While it is very early days the grades of the intersections are exceptional and well above the grades of other tungsten resources globally. We are now waiting with trepidation for the results from the 2021 drill pulps. This discovery shows the huge optionality of the Rumble tenements and the ability of our highly experienced exploration team to make new discoveries.”
Western Queen Tungsten Discovery
Tungsten mineralisation within drill hole WQDD013 (refer to Table 1) returned a spectacular intersection that included:
- 4.05m @ 4.58% WO3, 0.72 g/t Au from 174.85m; including
- 2.05m @ 8.71% WO3, 1.38 g/t Au from 176.85m; including
- 0.65m @ 18.35% WO3, 2.97 g/t Au from 176.85m.
Mineralisation contains large aggregates of scheelite grains (up to 5mm) occurring parallel to the main foliation trend. The mineralisation is essentially multiple scheelite-pyroxene (tremolite)+/-magnetite+/-gold exoskarn zones associated with the Western Queen orogenic shear zone (host to gold mineralisation) within dominant Archaean mafic amphibolite lithologies. The skarn development is thought to have been a later stage to the main gold event at Western Queen.
All previous drill holes completed by Rumble as part of the 2021 Western Queen gold resource estimate (2.1Mt @ 2.42 g/t Au for 163,200oz*) have subsequently been analysed for tungsten (W) by pXRF. Review of the pXRF analytical data has shown some 87 reverse circulation (RC) and diamond drill (DD) holes completed by Rumble have reported >500ppm W. Analytical results from pXRF analysers are indicative and may not reflect the true tungsten (W) grade.
Contouring of the pXRF tungsten (W) drill hole results has highlighted the following (refer to Figure 3):
- Very strong tungsten continuity over 2km (>100ppm W contour) with the same strike direction, orientation and position as the Western Queen Shear Zone which hosts the Western Queen gold deposits; and
- Between the Western Queen Central and Western Queen South open pits, the tenor of tungsten increases significantly with some 900m of strike >1000ppm W.
Additionally, a number of drill holes were strongly anomalous in tungsten (W) near surface within oxidised material
Next Steps
Re-assaying of select pulps from the previous Rumble gold resource drilling programs based on the pXRF tungsten analyses is underway to ascertain the spatial variability and tenor of the scheelite mineralisation. Up to 250 pulps from selected RC and diamond holes drilled by Rumble will initially be collected and submitted for wet analysis utilising complete digest through fusion XRF.
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This article includes content from Rumble Resources, licensed for the purpose of publishing on Investing News Australia. This article does not constitute financial product advice. It is your responsibility to perform proper due diligence before acting upon any information provided here. Please refer to our full disclaimer here.
RTR:AU
High grade Assay Results Continue at Youanmi
- The latest batch of assays have been received from the 11,000m drilling program (both diamond core and reverse circulation) at the high gold-grade Youanmi Gold Project, located centrally in Western Australia’s prolific gold fields
- The recently-completed infill/exploration program aimed to improve resource confidence and open up corridors for resource growth; to underpin the Definitive Feasibility Study (DFS), and, additionally, provide sample material for ongoing metallurgical optimisation test-work for the DFS program
- Latest highlights from the program include:
- RXDD131: 4.38m @ 19.07 g/t Au from 387.98m,
- incl. 1.73m @ 41.43 g/t Au from 389.96m
- RXDD119: 4.56m @ 14.60 g/t Au from 220.64m
- RXDD115: 2.99m @ 21.11 g/t Au from 249.88m
- RXDD119: 4.0m @ 7.37 g/t Au from 162.0m
- RXDD132: 7.19m @ 3.90 g/t Au from 263.61m
- RXDD133: 2.83m @ 6.53 g/t Au from 431.00m
- RXDD128: 3.82m @ 4.51 g/t Au from 364.59m,
- incl. 1.73m @ 8.22 g/t Au from 364.59m
- incl. 1.73m @ 8.22 g/t Au from 364.59m
- RXDD122: 0.95m @ 13.50 g/t Au from 204.44m
- §These results further demonstrate the continuity of high- grade gold mineralisation along the Youanmi greenstone belt belt, and the potential for resource growth both at depth and along-strike, with discovery potential to the south
- 35,000m Step-up drill campaign well underway with the plan to bring forward ounces and increase the mine plan
The program focused on converting Inferred stopes at Pollard, United North and Youanmi Main to higher confidence Indicated classification and providing material for metallurgical testing for the upcoming Definitive Feasibility Study (DFS) – on track for H2 CY25.
This final consignment of diamond assay results are the fourth batch of assays results returned from the drill program and have been entirely drilled from the Pollard, Youanmi and United North areas (Figure 1).
Rox Resources’ Chief Executive Officer, Phillip Wilding, commented:
“It’s pleasing to round out the 11,000m RD and DD drilling program with another batch of excellent intercepts.
“More importantly, the program has significantly improved our knowledge of the high grade and underexplored Youanmi ore system, and shown that mineralisation remains open at depth.
“Next steps are to convert Inferred areas of the Resource to the higher confidence Indicated classification, and finalise key intercepts of sample material for metallurgical test work to feed into the Youanmi DFS.
“We are excited to have commenced the 35,000m Step-up program to potentially bring forward ounces in the mine plan and significantly increase the size of the Pollard ore zone.”
Youanmi Major Growth Drill program
Resource drilling has focused on converting selected Inferred stopes in the current Mineral Resource of 16.2Mt at 4.4g/t Au for 2.3Moz (Indicated: 10.7Mt at 4.5g/t Au for 1.6 Moz : Inferred 5.5Mt at 4.2g/t Au for 0.7 Moz) 1 to higher confidence Indicated classification at Pollard, United North and Youanmi Main as shown in plan on Figure 1. The drilling has also provided both sample material for metallurgical testing and valuable geological data for the pending Definitive Feasibility Study (“DFS”) planned for second half of 2025.
Figure 1: Plan view of the Youanmi Gold Project featuring drill hole collar locations and 2024 Resource outline overprinted on aerial photography
Outside of the immediate resource area, drilling was also conducted on near-mine exploration and focused on the Youanmi South prospect area, or Paddy’s Lode, first reporting high-grade intercepts in 20232. The drilling at Paddy’s has complimented the Company’s exploration strategy moving south along the Main Lode Shear Zone (MLSZ) and adding additional gold ounces to the Resource. Youanmi South has the potential to grow the Resource above the 103kozpa Production Target outlined in the recently completed Pre-Feasibility Study (“PFS”)3.
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This article includes content from Rox Resources Limited, licensed for the purpose of publishing on Investing News Australia. This article does not constitute financial product advice. It is your responsibility to perform proper due diligence before acting upon any information provided here. Please refer to our full disclaimer here.
Drilling Commenced at Viani in Fiji
HIGHLIGHTS
- The Phase 1, three-hole diamond drilling program has commenced at the Viani Project, Fiji and will test for extensions to the quartz vein gold mineralisation at depth.
- Phase 1 is expected to be completed in early 2025, with plans for additional drilling under the same program dependent on the initial results
- The Viani Project (SPL1513) covers an area of approximately 200km2 and is largely underexplored.
- At the Dakuniba prospect within Viani, low sulphidation epithermal high-grade gold mineralisation has been mapped over >3km strike length.
- Diamond drilling completed by Japan International Cooperation Agency (JICA) in 1995 to 1997 intersected high-grade gold in low sulphidation epithermal quartz veins, including 0.6m @ 27.6 g/t Au.
Alice Queen’s Managing Director, Andrew Buxton said,
With drilling underway, Alice Queen is positioned to test the epithermal gold-style mineralisation identified in historic drilling at the Viani Project. Weather permitting, we anticipate completing the Phase 1, three-hole diamond drilling program in early 2025. Following this, our exploration team will mobilise the drill rig to the Sabeto Project in Fiji to maintain the momentum of this campaign. To deliver timely results to shareholders, we intend to accelerate the analysis of the drill core at ALS Brisbane.”
Image 1 – Diamond drilling at Viani
Details
Geology
The geology of the Viani Project (SPL 1513) comprises olivine basalts and volcaniclastics of the Natewa Volcanic Group which are intruded by andesite sills and dykes. In the 1940s, gold mineralisation was found by local prospectors near the village of Dakuniba. At Dakuniba, low sulphidation style epithermal gold occurs in quartz veins, and silicified rocks along a 3km long NE trending zone.
In 1995-1997, Japan International Cooperation Agency (JICA) drilled six diamond holes at Dakuniba and intersected high-grade gold in chalcedonic, crustiform, colloform banded quartz veins at depths of 50m to 100m below surface (i.e. MJVFV-5 intersected 2.2m @ 11.3 g/t Au, incl 0.6m @ 27.6 g/t Au at 121m downhole). This high-grade gold mineralisation is open in all directions.
Proposed Drill program
The initial Phase 1 drill program at Viani (see Table 1) will comprise three diamond drillholes designed to test continuity to the epithermal gold mineralisation previously intersected in JICA drillhole MJVFV- 5 (2.2m @ 11.3 g/t Au) (see Figure 2). The drilling will test for extensions to the gold mineralisation at depth and along strike.
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This article includes content from Alice Queen Limited, licensed for the purpose of publishing on Investing News Australia. This article does not constitute financial product advice. It is your responsibility to perform proper due diligence before acting upon any information provided here. Please refer to our full disclaimer here.
