Multiple high-grade gold intercepts at Western Queen
Released
Released
Announcement PDF
Rumble Resources Limited
ASX:RTR
ABN 74 148 214 260
rumbleresources.com.au
T: +6186555 3980
E:info@rumbleresources.com.au
HeadOffice
Level1, 16 OrdSt
WestPerth, WesternAustralia6005 1
ASX ANNOUNCEMENT
14 January 2026
Multiple high-grade gold intercepts at Western
Queen including 30.72g/t Au over 5.8 metres
Key Points
• The first diamond drill hole completed at Western Queen Central has intersected high-grade gold mineralisation
beneath the historical underground stopes, returning an exceptional intercept of:
o 5.8m @ 30.72g/t Au from 314.6m
• Drilling at Western Queen South has returned multiple high-grade gold intercepts as follows:
o 22.7m @ 2.84g/t Au from 203.3m
including 7.2m @ 6.00g/t Au from 213.8m
o 11m @ 3.00g/t Au from 247m
including 4m @ 6.70g/t Au from 247m
o 12m @ 3.40g/t Au from 283m
including 3m @ 7.03g/t Au from 288m
o 11m @ 3.99g/t Au from 284m
including 5m @ 6.99g/t Au from 286m
o 8m @ 3.12g/t Au from 279m
o 6m @ 5.05g/t Au from 242m
• All the holes intersected the predicted mineralised position, with 9 of the first 11 holes drilled to date returning
significant high-grade gold intercepts
• Drilling has also continued to intersect multiple zones of high grade scheelite. Significant intercepts include:
o 5.9m @ 0.30% WO3 from 201m
o 1.0m @ 1.24% WO3 from 215m
o 6.2m @ 0.30% WO3 from 223.76m
• Drilling is underway again at Western Queen after the Christmas/New Year break
• The next batch of assay results are due late January
Peter Harold, Managing Director and CEO commented:
“These are fantastic results and demonstrate that the current 370,000oz high-grade gold resource can grow. The +30g/t
hit at Western Queen Central is spectacular and indicates that there could be more higher-grade mineralisation at Western
Queen.
The fact that we continue to discover more tungsten bearing material also suggests our current tungsten resource will
grow.
It is wonderful to start the new year off with such positive results. Western Queen keeps delivering gold and tungsten
which is a credit to our exploration team.”
Rumble Resources Limited
ASX:RTR
ABN 74 148 214 260
rumbleresources.com.au
T: +6186555 3980
E:info@rumbleresources.com.au
HeadOffice
Level1, 16 OrdSt
WestPerth, WesternAustralia6005 2
Rumble Resources Limited (ASX: RTR) (“Rumble” or the “Company”) is delighted to provide this update on the current 20,000m
diamond drilling program that commenced in October 2025 at the Western Queen Gold Project (“Western Queen” or the
“Project”).
Western Queen is located approximately 40 km northwest of Ramelius’s Dalgaranga Gold Project and 90km northwest of Mt
Magnet, in Western Australia, and contains reported resources totalling 370,000oz Au at 3.1g/t Au1.
Western Queen South – Gold mineralisation
A total of 23 diamond drill holes for 8,442m were completed at Western Queen South (WQS) by the end of 2025. Six of these
holes targeted the down plunge extensions to the high-grade mineralisation, while 17 holes were designed to infill the Inferred
resources, collect metallurgical samples and geotechnical data (see Figure 1).
Figure 1 - Western Queen South – gram x metre contours with selected drill hole intersections – longitudinal section
1 Refer to Rumble ASX release 23 July 2025 “Significant Increase to Western Queen Gold Resources to 370koz at 3.1g/t Au”
Rumble Resources Limited
ASX:RTR
ABN 74 148 214 260
rumbleresources.com.au
T: +6186555 3980
E:info@rumbleresources.com.au
HeadOffice
Level1, 16 OrdSt
WestPerth, WesternAustralia6005 3
Assay results have been received from the first 10 holes of the WQS program. Results include:
• 7m @ 3.24g/t Au from 317m (WQDD032)
• 22.7m @ 2.84g/t Au from 203.3m (WQDD033)
o including 7.2m @ 6.00g/t Au from 213.8m
• 11m @ 3.00g/t Au from 247m (WQDD034)
o including 4m @ 6.70g/t Au from 247m
• 12m @ 3.40g/t Au from 283m (WQDD036)
o including 3m @ 7.03g/t Au from 288m
• 11m @ 3.99g/t Au from 284m (WQDD037)
o including 5m @ 6.99g/t Au from 286m
• 7.97m @ 3.12g/t Au from 279m (WQDD038)
• 3.48m @ 4.28g/t Au from 224.52m (WQDD040)
• 6m @ 5.05g/t Au from 242m (WQDD041)
The WQS mineralised position was intersected in all holes and is characterised by a zone of silicification and pyrrhotite-pyrite
alteration.
Seventeen infill holes were completed to provide 25m spacing between intercepts. Two of these holes (WQDD032 and WQDD034)
were drilled from the eastern side of the open pit with HQ3 core from surface to collect geotechnical data in areas of potential future
underground infrastructure.
Six holes were drilled targeting mineralisation between 340 - 440m vertical depth. Assay results have been received for two of the six
deep holes.
Once all assay results are received further extension and infill drilling at Western Queen South will be carried out as a part of the
planned drill program.
Western Queen Central – Gold mineralisation
Two diamond holes were completed at Western Queen Central for a total of 770m (see Figure 2). Assays have been received for the
first of these holes which returned the following spectacular intercept:
• 5.8m @ 30.72g/t Au from 314.6m (WQDD052)
WQDD052 was drilled to investigate the untested up-plunge position in proximity to old underground workings at Western Queen
Central. The mineralisation occurs at the contact between a retrograde tremolite/actinolite skarn and later quartz veining, which is
recognised as the typical mineralisation style at the Western Queen Central Deposit. The hole further opens the up-plunge position
toward the Western Queen underground workings for further drilling.
Drilling after the Christmas/New Year period has recommenced at Western Queen Central with one rig and is initially focusing on the
down-plunge extensions of this shoot. Infill drilling up and down-plunge of WQDD052 is planned to follow in the short term.
Rumble Resources Limited
ASX:RTR
ABN 74 148 214 260
rumbleresources.com.au
T: +6186555 3980
E:info@rumbleresources.com.au
HeadOffice
Level1, 16 OrdSt
WestPerth, WesternAustralia6005 4
Figure 2 – Western Queen Central and Princess gram x metre contours with selected drill hole intersections - longitudinal section
Western Queen South – Tungsten mineralisation
Whilst the majority of holes were not targeting tungsten, the diamond drilling at WQS has once again intersected multiple zones of
scheelite (tungsten) mineralisation. Significant assay intersections include:
• 5.9m @ 0.30% WO3 from 201m (WQDD033)
• 2m @ 0.30% WO3 from 248m (WQDD034)
o and 2m @ 0.45% WO3 from 328m
• 1m @ 1.12% WO3 from 216m (WQDD036)
• 1m @ 1.24% WO3 from 215m (WQDD038)
• 2m @ 0.49% WO3 from 198m (WQDD040)
o and 6.24m @ 0.30% WO3 from 223.76m
o and 2m @ 0.56% WO3 from 248m
Ongoing geological investigations and petrographic studies have confirmed tungsten mineralisation at Western Queen represents an
early prograde endoskarn mineralisation event which predates orogenic gold mineralisation.
Rumble Resources Limited
ASX:RTR
ABN 74 148 214 260
rumbleresources.com.au
T: +6186555 3980
E:info@rumbleresources.com.au
HeadOffice
Level1, 16 OrdSt
WestPerth, WesternAustralia6005 5
In August 2025, Rumble announced a maiden tungsten Mineral Resource Estimate (Inferred) of 4.31Mt @ 0.31% WO3 for 13.2kt
WO3
2
. The tungsten mineralisation at Western Queen remains open in all directions.
Preliminary metallurgical test work has indicated a significant revenue stream could be generated from the tungsten bearing
material. This needs to be verified with detailed metallurgical testwork, a detailed mining schedule and scoping study. A bulk
sample of the tungsten bearing (scheelite) material is currently undergoing metallurgical testing by ALS Metallurgy. The aim of this
program is to develop a grade versus recovery curve for the scheelite material to be used to determine the quantum of the tungsten
revenue stream and whether it can be generated concurrently with the mining of the Western Queen South gold mineralisation.
Western Queen Next Steps
Gold
• Drill hole planning - Interpret the results for the holes completed during 2025 to assist planning further holes
in the current extensional and infill drilling program.
• Continue drilling - One rig at Western Queen Central ahead of a second rig returning in February.
• Metallurgical testwork - Six diamond holes from the current infill program have been selected to provide
samples for a metallurgical testwork program to validate the previous high metallurgical recoveries from
Western Queen South.
• Resources update - Aim is to report an updated gold Mineral Resource Estimate in 2026.
Tungsten
• Further drilling - Interpret tungsten assay results and plan further holes as part of the current drill program.
• Metallurgical testwork/Scoping Study - Complete metallurgical testwork on bulk scheelite sample and progress
to scoping study in 2026.
• Resources update - target updated tungsten Mineral Resource Estimate during 2026.
About Western Queen
The Western Queen Gold Project (“Western Queen” or the “Project”) lies 90km NW of Mt Magnet within the Yalgoo mineral field
of Western Australia. The Project comprises of two contiguous mining leases (M59/45 and M59/208) for a total area of 9.8 km². In
addition to the mining leases, it includes L59/40 (Miscellaneous License) which covers a portion of the original haul road between
Western Queen and Dalgaranga.
The Dalgaranga plant processed the historical ore reserves from the Western Queen Central deposit. The original haul road is still
open and is the main access into the Project. Rumble holds 100% equity in the Project. Surrounding Western Queen is the
Wardawarra Project (100% Rumble). The Wardawarra Project consists of a single granted exploration license (E20/967) and two
exploration licence applications (E59/2816 and E59/3012).
Western Queen is strategically located within 200km of five gold processing plants (see Figure 3).
2
ASX release date 11 August 2025 “Maiden Tungsten Resource of 13,200 tonnes of WO3 highlights the exceptional potential of the Western Queen
Project”
Rumble Resources Limited
ASX:RTR
ABN 74 148 214 260
rumbleresources.com.au
T: +6186555 3980
E:info@rumbleresources.com.au
HeadOffice
Level1, 16 OrdSt
WestPerth, WesternAustralia6005 6
Figure 3 - Location Plan of the Western Queen Gold Project
The two deposits mined at the Western Queen had a combined historic production of 880,000t @ 7.6 g/t Au for 215,000oz. The
Western Queen Central Mine produced 660,000t @ 8.9 g/t Au for 189,500oz and the Western Queen South Mine (from two stages)
produced 220,000t @ 3.6 g/t Au for 25,500oz.
In July 2025, Rumble announced an updated Mineral Resource Estimate (Indicated and Inferred) of 3.72Mt @ 3.1 g/t Au for 370,000
oz3.
Within both the Western Queen Project area and the surrounding Wardawarra Project there is high potential to add significantly
to the current resource. Gold mineralisation is associated with a structural jog zone within a major orogenic shear which trends
north-south along the Wardawarra Greenstone Belt (see Figure 4).
The structural jog cuts across amphibolite (after basalt and dolerite) and ultramafic lithologies. At the Western Queen Central
deposit, a very high-grade gold skarn has developed within the ultramafic rocks, with an average grade of 8.9g/t Au recorded in
historical production.
The skarn is tremolite after diopside and plunges moderately to the south. At the Western Queen South deposit, high-grade gold
potassic altered quartz-sulphide lodes have developed in fine to medium grain amphibolite and plunge moderately to the south.
3 ASX release date 23 July 2025 “Significant Increase to Western Queen Gold Resources 370koz @ 3.1g/t Au”
Rumble Resources Limited
ASX:RTR
ABN 74 148 214 260
rumbleresources.com.au
T: +6186555 3980
E:info@rumbleresources.com.au
HeadOffice
Level1, 16 OrdSt
WestPerth, WesternAustralia6005 7
Figure 4 - Western Queen Shear Zone Prospectivity over TMI Airborne Magnetics
Authorisation
This announcement is authorised for release by the Board of the Company.
-Ends-
For further information visit rumbleresources.com.au or contact info@rumbleresources.com.au
Peter Harold
Managing Director & CEO
Rumble Resources Limited
Peter Venn
Technical Director
Rumble Resources Limited
Trevor Hart
Chief Financial Officer
Rumble Resources Limited
About Rumble
Rumble Resources is an Australian based exploration company, listed on the ASX in July 2011. Rumble was established with
the aim of adding significant value to its selected mineral exploration assets and to search for suitable mineral acquisition
opportunities in Western Australia.
Rumble has a unique suite of resources projects including the Western Queen Gold-Tungsten Project which is being
developed to deliver near term cash flow from the existing underground resources and resource growth through future
exploration success. In addition, the discovery of the Earaheedy Zn-Pb-Ag Project has demonstrated the capabilities of the
exploration team to find world class orebodies.
Rumble Resources Limited
ASX:RTR
ABN 74 148 214 260
rumbleresources.com.au
T: +6186555 3980
E:info@rumbleresources.com.au
HeadOffice
Level1, 16 OrdSt
WestPerth, WesternAustralia6005 8
Competent Persons Statement
The information in this report that relates to Exploration Results and Exploration Targets is based on and fairly represents
information compiled by Mr Simon Davies, who is a Member of the Australian Institute of Geoscientists. Mr Davies is an
employee of Rumble Resources Limited. Mr Davies has sufficient experience relevant to the style of mineralisation and
type of deposit under consideration and to the activity which he is undertaking to qualify as a Competent Person as
defined in the 2012 Edition of the “Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore
Reserves”. Mr Davies consents to the inclusion in the report of the matters based on his information in the form and
context in which it appears.
Previously Reported Information
The information in this report that references previously reported exploration results is extracted from the Company’s
ASX market announcements released on the date noted in the body of the text where that reference appears. The
previous market announcements are available to view on the Company's website or on the ASX website (www.
asx.com.au). The Company confirms that it is not aware of any new information or data that materially affects the
information included in the original market announcements. The Company confirms that the form and context in which
the Competent Person’s findings are presented have not been materially modified from the original market
announcements.
Disclaimer
This report contains certain forward-looking statements and forecasts, including possible or assumed reserves and
resources, production levels and rates, costs, prices, future performance or potential growth of Rumble Resources Ltd,
industry growth or other trend projections. Such statements are not a guarantee of future performance and involve
unknown risks and uncertainties, as well as other factors which are beyond the control of Rumble Resources Ltd. Actual
results and developments may differ materially from those expressed or implied by these forward-looking statements
depending on a variety of factors. Nothing in this report should be construed as either an offer to sell or a solicitation of
an offer to buy or sell securities. This document has been prepared in accordance with the requirements of Australian
securities laws, which may differ from the requirements of United States and other country securities laws. Unless
otherwise indicated, all ore reserve and mineral resource estimates included or incorporated by reference in this
document have been, and will be, prepared in accordance with the JORC classification system of the Australasian Institute
of Mining, and Metallurgy and Australian Institute of Geoscientists.
Rumble Resources Limited
ASX:RTR
ABN 74 148 214 260
rumbleresources.com.au
T: +6186555 3980
E:info@rumbleresources.com.au
HeadOffice
Level1, 16 OrdSt
WestPerth, WesternAustralia6005 9
Table 1 - Drill Hole Location, Survey and Gold Assay Results
Hole ID E MGA N MGA RL Depth (m) Dip Azi To (m) Width (m) Au (g/t)
WQDD032 512584 6954546 391.39 382.4 -51.11 268.05 276 304 28 1.13
incl. 280.9 289 8.1 2.10
incl. 282 286 4 3.05
and 308 324 16 1.92
incl. 317 324 7 3.24
WQDD033 512324 6954700 391 250.15 -49.88 132.66 185 190 5 1.50
and 203.3 226 22.7 2.84
incl. 203.3 206.9 3.6 3.60
and incl. 213.8 221 7.2 6.00
WQDD034 512513 6954456 391 369.5 -59.53 296.08 247 258 11 3.00
incl. 247 251 4 6.70
and 288 290 2 3.22
WQDD035 512046 6954452 388.95 662 -65.19 117.76 503 508 5 1.68
incl. 503 505 2 2.83
WQDD035W1 512046 6954452 388.95 543.9 -65.19 117.76 507 513 6 1.22
WQDD036 512247 6954556 391 318.9 -63.07 117.94 283 295 12 3.40
incl. 288 291 3 7.03
WQDD037 512247 6954556 391 313 -59.79 120.78 284 295 11 3.99
incl. 286 291 5 6.99
WQDD038 512248 6954553 391 296 -57.88 115.69 272 287.97 15.97 2.03
incl. 279 286.97 7.97 3.12
WQDD040 512270 6954542 390 274 -58.46 112.69 220 232 12 2.56
incl. 224.5 228 3.48 4.28
and 236 253 17 1.06
incl. 244 247 3 3.00
WQDD041 512266 6954544 390 287.2 -59.84 101.73 235 254 19 2.36
incl. 242 253 11 3.62
incl. 242 248 6 5.05
WQDD052 512633 6955592 397 350 -63.69 134.12 314.6 320.4 5.8 30.72
From (m)
Rumble Resources Limited
ASX:RTR
ABN 74 148 214 260
rumbleresources.com.au
T: +6186555 3980
E:info@rumbleresources.com.au
HeadOffice
Level1, 16 OrdSt
WestPerth, WesternAustralia6005 10
Table 2 - Drill Hole Location, Survey and Tungsten Assay Results
Hole ID E MGA N MGA RL Depth (m) Dip Azi To (m) Width (m) WO3 (%)
WQDD032 512584 6954546 391.39 382.4 -51.11 268.05 295 299 4 0.19
and 306 307 1 0.5
and 318 324 6 0.22
and 335 339 4 0.2
and 342 346 4 0.22
WQDD033 512324 6954700 391 250.15 -49.88 132.66 201 206.9 5.9 0.3
and 213.8 229.2 15.4 0.12
incl. 220 223.2 3.2 0.28
WQDD034 512513 6954456 391 369.5 -59.53 296.08 243.2 253 9.84 0.18
incl. 248 250 2 0.3
and 287 291 4 0.13
and 328 330 2 0.45
WQDD036 512247 6954556 391 318.9 -63.07 117.94 216 217 1 1.12
and 255 257 2 0.25
WQDD038 512248 6954553 391 296 -57.88 115.69 215 216 1 1.24
and 280.5 282.5 2 0.28
WQDD040 512270 6954542 390 274 -58.46 112.69 198 200 2 0.49
and 223 238 15 0.2
incl. 223.8 230 6.24 0.3
and 248 250 2 0.56
and 255 256 1 0.5
From (m)
Rumble Resources Limited
ASX:RTR
ABN 74 148 214 260
rumbleresources.com.au
T: +6186555 3980
E:info@rumbleresources.com.au
HeadOffice
Level1, 16 OrdSt
WestPerth, WesternAustralia6005 11
Previous ASX Announcements – Western Queen Gold Project
• 6/8/2019 – Option to Acquire High-Grade Western Queen Gold Project
• 4/11/2019 – Western Queen Gold Project – Multiple Targets to be Drilled
• 22/11/2019 – Drilling Commenced at Western Queen Gold Project
• 17/2/2020 – High Grade Gold Discovery at the Western Queen Project
• 25/2/2020 – Drilling Commenced at the Western Queen Gold Project
• 14/4/2020 – Exploration Update – Three Drill Programs Completed
• 20/5/2020 – Drilling Identifies Multiple High-Grade Gold Shoots
• 9/6/2020 – Major Drill Program to Commence – Western Queen Gold Project
• 24/6/2020 – Major Drill Program Commenced at The Western Queen Gold Project
• 16/7/2020 – 500% Increase in Landholding Extends Western Queen Project
• 31/8/2020 – Option Exercised to Acquire the Western Queen Gold Project
• 10/9/2020 – 100% Acquisition of Western Queen Gold Project Complete
• 4/11/2020 – Discovery High-Grade Gold Shoots and Shear Zone Extension
• 3/2/2021 – High-Grade Gold Shoots at Western Queen South Deposit
• 2/8/2021 – Western Queen Resource Upgrade to 163,000oz
• 29/4/2024 – Drilling to test High-Grade Gold Zones at Western Queen
• 29/5/2024 – Western Queen Drilling Commenced
• 16/7/2024 – Western Queen Drilling Update
• 6/8/2024 – High-Grade Tungsten Discovery at Western Queen
• 2/9/2024 – Tungsten Discovery at Western Queen Confirmed
• 27/09/2024 - Rumble welcomes new Strategic Investor
• 15/10/2024 – Western Queen Gold Resources increased 76% to 287koz
• 20/11/2024 – Commencement of Drilling at Western Queen
• 28/11/2024 – Development of Western Queen Gold Project
• 11/12/2024 – High-Grade Tungsten Assays Highlights Resource Potential at WQ
• 17/2/2025 – High-grade Gold and Tungsten Assays from Phase 1 Drilling
• 28/2/2025 – Development of Western Queen Gold Project.
• 4/2/2025 – High Grade Tungsten from Historical Core
• 16/4/2025 – Western Queen - Mine Development and Exploration Update
• 30/5/2025 – Western Queen Gold Mine Development
• 4/6/2025 – High-grade Gold and Tungsten at Western Queen Project
• 23/7/2025 – Significant Increase to Western Queen Gold Resources.
• 4/8/2025 – High-Grade Tungsten Assays at Western Queen.
• 11/8/2025 – Maiden Tungsten Resource at Western Queen Project
• 01/10/2025 – Western Queen Exploration and Development Update
• 22/10/2025 - Western Queen Drilling and Development Update
• 27/11/2025 - Western Queen South Scoping Study Highlights Robust Underground Mining Project
• 22/12/2025 - Western Queen Drilling & Mine Development Update
Rumble Resources Limited
ASX:RTR
ABN 74 148 214 260
rumbleresources.com.au
T: +6186555 3980
E:info@rumbleresources.com.au
HeadOffice
Level1, 16 OrdSt
WestPerth, WesternAustralia6005 12
Section 1 Sampling Techniques and Data
Criteria JORC Code explanation Commentary
Sampling
techniques
• Nature and quality of sampling (e.g. cut channels, random
chips, or specific specialised industry standard measurement
tools appropriate to the minerals under investigation, such as
down hole gamma sondes, or handheld XRF instruments, etc.).
These examples should not be taken as limiting the broad
meaning of sampling.
• Include reference to measures taken to ensure sample
representivity and the appropriate calibration of any
measurement tools or systems used.
• Aspects of the determination of mineralisation that are
Material to the Public Report.
• In cases where ‘industry standard’ work has been done this
would be relatively simple (e.g. ‘reverse circulation drilling was
used to obtain 1 m samples from which 3 kg was pulverised to
produce a 30 g charge for fire assay’). In other cases, more
explanation may be required, such as where there is coarse
gold that has inherent sampling problems. Unusual
commodities or mineralisation types (e.g. submarine nodules)
may warrant disclosure of detailed information.
• Diamond Core Sampling - Sampled to
visible mineralisation or lithological
boundaries. Otherwise to 1m intervals.
• Diamond core sampling is ½ core or ¼
core when sample is required for
metallurgical test work for NQ2 and ¼
core for HQ3.
• Standards, blanks and duplicates inserted
at a rate of 8%. 4% Standards, 2% Blanks,
2% duplicates. Additional standards,
blanks and duplicates inserted where
required.
• pXRF readings taken with a Vanta M series
device every metre on clean
representative core. 2 beams with 10
second run times each.
Drilling
techniques
• Drill type (e.g. core, reverse circulation, open-hole hammer,
rotary air blast, auger, Bangka, sonic, etc.) and details (e.g.
core diameter, triple or standard tube, depth of diamond tails,
face-sampling bit or other type, whether core is oriented and if
so, by what method, etc.).
• Diamond Rigs are Sandvik DE880s.
• Collars are drilled with mud rotary to
refusal. HQ3 then NQ2 core is drilled.
• Core is oriented using a downhole AXIS or
tool.
Drill sample
recovery
• Method of recording and assessing core and chip sample
recoveries and results assessed.
• Measures taken to maximise sample recovery and ensure
representative nature of the samples.
• Whether a relationship exists between sample recovery and
grade and whether sample bias may have occurred due to
preferential loss/gain of fine/coarse material.
• Diamond core sample collected in trays,
orientated, logged, pXRF, and
photographed on site. Core was cut and
sampled by Rumble staff onsite.
• 100% core recovery was obtained.
Logging
• Whether core and chip samples have been geologically and
geotechnically logged to a level of detail to support
appropriate Mineral Resource estimation, mining studies and
metallurgical studies.
• Whether logging is qualitative or quantitative in nature. Core
(or costean, channel, etc.) photography.
• The total length and percentage of the relevant intersections
logged.
• Diamond core is geologically, structurally
and geotechnically logged with full
orientation and photography. Core
recovery is calculated based on 1m
intervals. Entire diamond core logged
including mineralisation and country rock.
• pXRF data will be used to refine logging of
units, particularly using the Ti/Zr ratio.
• Core photographed post marking up dry
and wet.
Sub-sampling
techniques
and sample
preparation
• If core, whether cut or sawn and whether quarter, half or all
core taken.
• If non-core, whether riffled, tube sampled, rotary split, etc. and
whether sampled wet or dry.
• For all sample types, the nature, quality and appropriateness
of the sample preparation technique.
• Quality control procedures adopted for all sub-sampling stages
to maximise representivity of samples.
• Measures taken to ensure that the sampling is representative
of the in-situ material collected, including for instance results
for field duplicate/second-half sampling.
• Whether sample sizes are appropriate to the grain
• size of the material being sampled.
• Diamond core was orientated and marked
based on 1 metre or geological
boundaries. The core was cut 30 degrees
off the orientation mark (retaining in tray
the orientation mark) line.
• For duplicates (approximately every 20
samples), sample is split at the crushing
stage at ALS Laboratories. At all times, half
core was retained for future reference.
Quality of
assay data
and
• The nature, quality and appropriateness of the assaying and
laboratory procedures used and whether the technique is
considered partial or total.
• For geophysical tools, spectrometers, handheld XRF
• Sample preparation by crushing, splitting
to 3kg sample if required, and pulverising
of up to 3kg.
Rumble Resources Limited
ASX:RTR
ABN 74 148 214 260
rumbleresources.com.au
T: +6186555 3980
E:info@rumbleresources.com.au
HeadOffice
Level1, 16 OrdSt
WestPerth, WesternAustralia6005 13
Criteria JORC Code explanation Commentary
laboratory
tests
instruments, etc., the parameters used in determining the
analysis including instrument make and model, reading times,
calibrations factors applied and their derivation, etc.
• Nature of quality control procedures adopted (e.g. standards,
blanks, duplicates, external laboratory checks) and whether
acceptable levels of accuracy (i.e. lack of bias) and precision
have been established.
• For tungsten (W), assaying methodology
utilised complete digest through lithium
borate fusion with an ICP-MS finish. High
grade samples that could not be
determined by this method underwent a
lithium metaborate - lithium tetraborate
fusion with an XRF finish.
• Certified tungsten standards were: CDN-
W-4 and CDN-W-6.
• In addition, each metre of core was
analysed by Vanta M Series pXRF, with 2
10 second beams.
• Blanks and standards analysed at the
beginning of each usage of pXRF.
• For Gold (Au) assaying was completed by
50g charge Fire Assay with AA finish (total
digest).
• Certified Gold standards were industry
CRMs from OREAS and Geostats which
included low-grade and high- grade along
with blanks.
Verification of
sampling and
assaying
• The verification of significant intersections by either
independent or alternative company personnel.
• The use of twinned holes.
• Documentation of primary data, data entry procedures, data
verification, data storage (physical and electronic) protocols.
• Discuss any adjustment to assay data.
• Verification of significant intersections by
Rumble personnel.
• No twinned holes completed.
• All data and documentation are
electronic, backed up to company
SharePoint.
• Logging using digital software package.
pXRF, survey and other data entered using
excel.
• Complete hole data and assay results sent
to company database administrator to
load into online hosted database.
Location of
data points
• Accuracy and quality of surveys used to locate drill holes (collar
and down-hole surveys), trenches, mine workings and other
locations used in Mineral Resource estimation.
• Specification of the grid system used.
• Quality and adequacy of topographic control.
Diamond drill-hole collars have been surveyed
using handheld GPS. DGPSsurvey to be
completed.
• Rumble has flown a high-resolution DEM
to ascertain topographic control for
collars where the natural surface still
exists.
• Down-hole surveys were completed by
Gyro every 20 to 30 m.
Data spacing
and
distribution
• Data spacing for reporting of Exploration Results.
• Whether the data spacing and distribution is sufficient to
establish the degree of geological and grade continuity
appropriate for the Mineral Resource and Ore Reserve
estimation procedure(s) and classifications applied.
• Whether sample compositing has been applied.
• Data spacing is based on surface DGPS
drill hole pick-up including RL, and
historical survey data.
Rumble Resources Limited
ASX:RTR
ABN 74 148 214 260
rumbleresources.com.au
T: +6186555 3980
E:info@rumbleresources.com.au
HeadOffice
Level1, 16 OrdSt
WestPerth, WesternAustralia6005 14
Criteria JORC Code explanation Commentary
Orientation of
data in
relation to
geological
structure
• Whether the orientation of sampling achieves unbiased
sampling of possible structures and the extent to which this is
known, considering the deposit type.
• If the relationship between the drilling orientation and the
orientation of key mineralised structures is considered to have
introduced a sampling bias, this should be assessed and
reported if material.
• Structural orientation of mineralisation is
well known. Most historical drilling is
appropriately angled for this orientation.
• Drilling orientation is not considered to
have introduced a sampling bias.
Sample
security
• The measures taken to ensure s
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