Large Scale Copper-Silver Targets at Mt Gossan and Siberia
Released
Released
Announcement PDF
ASX code:GG1 Contact: Quentin Hill – Managing Director
Web: greengoldminerals.com.au Email: qhill@greengoldminerals.com.au
GREEN & GOLD MINERALS
Page 1
Large Scale Copper-Silver Drill Targets at Mt Gossan and Siberia
➢ High grade copper, silver, tin and indium in XRF rock chip analysis1 at Mt Gossan and
Siberia, with highlights of:
o 23.3% Cu, 4.2% Sn, 126 g/t Ag, 419 g/t In, 0.2% W in sample SI031 (Siberia)
o 24.7% Cu, 281 g/t In, 0.9% Sn, 57 g/t Ag, 0.06% W in sample SI032 (Siberia)
o 21.7% Cu, 293 g/t Ag, 558 g/t In, 0.4% Sn, 3.7% Zn in sample SI034 (Siberia)
➢ Two new targets with significant scale potential are being prepared for drilling:
1. The Mt Gossan breccia; which has never been drilled, is up to 210m long, 125m
wide and is strongly anomalous in the target metals.
2. The Siberia vein system; 5km of outcrop, high grades and substantial resource
potential. Historic drill results include2:
▪ 8m at 2.6% Cu, 39 g/t Ag, 0.3% Sn from 15m (SPH15)
▪ 3m at 77 g/t Ag, 0.7% Cu, 0.7% Sn, 4.7% Zn, 2.3% Pb from 20m (SPH21)
▪ 6m at 1.2% Cu, 31 g/t Ag, 0.2% Sn from 33m (SPH22)
➢ Mt Gossan and Siberia drilling is planned after the upcoming Copper Hills - Chillagoe drill
campaign, which is scheduled to commence in late May 2026.
1 Portable XRF analysis is a spot measurement, intended to identify the metals that are present, but does not
represent the average insitu concentration of those metals.
2 Historic results are outlined in the announcement dated 4 Feb 2026: ASX:GG1 - Future Facing Metals
Acquisition Ag-Cu-Sn-Au-In
ASX Announcement
11 May 2026
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Exploration Update: Herberton Conductor Metals Project
Green & Gold Minerals Limited (ASX: GG1) is pleased to provide an exploration update from the
Herberton Conductor Metals Project. GG1 is exploring for a stand-alone large tonnage copper, silver, tin
and indium resource, or group of resources in this well-endowed and underexplored district.
Mt Gossan and Siberia are large scale copper, silver, tin and indium targets. Initial reconnaissance
including XRF analysis confirmed an extensive gossanous breccia outcrop at Mt Gossan and
widespread mineralisation, including extensive historic mining centres over several kilometres on the
Siberia vein system. Significant copper, silver, tin and indium anomalism was confirmed by XRF results.
Conventional rock chips were taken for laboratory analysis with results pending.
The Herberton area is best known for historic tin mining, however the mineral field also contains a large
copper and silver dominant zone in which GG1’s tenements are located, and a separate silver, lead
and zinc dominant zone (Figure 1). The latter has been successfully explored by Iltani and Dover Castle,
each defining large, nationally significant silver-lead-zinc-indium resources.
GG1 aims to replicate the exploration success of neighbouring companies, identifying similar large
scale opportunities in the copper, silver, indium and tin dominant zone, where success is leveraged to
electrification and AI.
The reconnaissance sampling detailed in this announcement supports the prospectivity of Mt Gossan
and Siberia for large scale copper, silver, tin and indium mineralisation.
Figure 1 The Herberton Conductor Metals Project location.
ASX code:GG1 Contact: Quentin Hill – Managing Director
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Mt Gossan
The Mt Gossan prospect is part of the 5km east-west striking mineralised Siberia lode structure, and is
characterised by a gossanous and quartz stockwork-veined breccia and multiple occurrences of the
Siberia Lode. It is a highly prospective target for larger breccia style thickening of mineralisation and
repeats of the lode structure. The Mt Gossan breccia has never been drilled.
The Siberia lode outcrops to the north and east of the breccia, where it is approximately 2m thick and
was mined via the Mt Gossan mine adit on the northern slope of Mt Gossan and via a series of shafts
and drives on the eastern slope. An lode repeat has been mapped by previous explorers in the mine
adit and at surface.
Portable XRF readings on material collected at the Mt Gossan mine adit dump, along with several
gossanous breccia and vein outcrops, returned values of up to 24% Cu and 71 g/t Ag. Elevated Indium
values were recorded across all samples, with a maximum value of 576 g/t In recorded in breccia
outcrop from Mt Gossan.
The XRF results indicate that the gossanous surface outcrops have likely undergone supergene
leaching of copper and silver, with residual enrichment in arsenic resulting from surficial weathering
processes. In contrast, rock samples sourced from mine dumps from underground workings beneath
these surface outcrops returned higher copper and silver values and relatively lower arsenic values.
Figure 2 Mt Gossan mapped lodes/gossan, XRF rock chip results and historic drill results (for
full historic results, see announcement 4 Feb 2026: Future Facing Metals Acquisition Ag-Cu-Sn-
Au-In. Coordinates in GDA2020, zone 55.
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The portable XRF results for rock chips from the Mt Gossan area are shown below in Table 1. Rock chip
samples have also been sent for laboratory analysis to test for gold and a broad multielement suite.
Name Easting Northing Location Cu Zn As Ag In Sn W Pb Bi
% % % g/t g/t % % % g/t
si 16 296886 8069056 Mt Gossan Breccia 0.04% 0.00% 2.38% 0 65 0.10% 0.01% 0.03% 88
si 17 296887 8069057 Mt Gossan Breccia 0.09% 0.00% 4.93% 56 43 0.10% 0.01% 0.13% 392
si 18 296885 8069057 Mt Gossan Breccia 0.09% 0.00% 2.17% 45 16 0.06% 0.00% 0.03% 0
si 19 296823 8069072 Mt Gossan Breccia 0.07% 0.00% 19.05% 0 163 0.03% 0.01% 0.00% 141
si 20 296873 8069093 Mt Gossan Breccia 0.04% 0.01% 0.48% 0 46 0.01% 0.00% 0.08% 0
si 21 296949 8069077 Mt Gossan Breccia 0.08% 0.00% 7.45% 0 33 0.01% 0.00% 0.03% 1160
si 22 296948 8069076 Mt Gossan Breccia 0.25% 0.01% 4.68% 0 37 0.02% 0.00% 0.03% 246
si 23 296936 8069113 Mt Gossan Breccia 0.09% 0.02% 24.11% 0 576 0.35% 0.06% 0.37% 1363
si 24 296882 8069227 Mt Gossan Adit 10.81% 0.09% 0.16% 0 18 0.01% 0.00% 0.00% 10
si 25 296881 8069226 Mt Gossan Adit 0.01% 0.00% 0.01% 0 25 0.01% 0.00% 0.01% 3
si 26 296883 8069227 Mt Gossan Adit 0.46% 0.00% 3.43% 0 31 0.01% 0.01% 0.00% 82
si 27 296882 8069225 Mt Gossan Adit 0.42% 0.00% 3.30% 0 77 0.05% 0.01% 0.01% 81
si 28 296884 8069228 Mt Gossan Adit 0.19% 0.00% 1.49% 0 14 0.01% 0.00% 0.00% 36
si 37 297172 8069260 Siberia Lode, Mt Gossan 13.25% 0.00% 0.10% 0 30 0.03% 0.01% 0.01% 0
si 38 297171 8069261 Siberia Lode, Mt Gossan 0.26% 0.00% 5.69% 71 74 0.08% 0.00% 0.99% 86
si 39 297133 8069244 Siberia Lode, Mt Gossan 0.37% 0.01% 26.57% 0 43 0.04% 0.00% 0.23% 0
si 40 297099 8069218 Siberia Lode, Mt Gossan 24.10% 0.01% 6.62% 69 34 0.03% 0.08% 0.02% 56
si 01 298097 8069168 Panorama 0.00% 0.00% 0.00% 0 21 0.01% 0.00% 0.00% 0
si 02 298077 8069025 Panorama 0.04% 0.14% 0.56% 66 63 0.13% 0.00% 0.08% 0
si 03 298080 8069040 Panorama 0.30% 0.00% 2.61% 0 265 0.32% 0.00% 0.11% 759
si 04 298081 8069039 Panorama 1.14% 0.00% 23.96% 0 478 0.24% 0.05% 4.84% 0
si 05 297846 8069256 Panorama 0.00% 0.04% 0.06% 0 22 0.01% 0.00% 0.05% 0
si 06 297849 8069226 Panorama 0.00% 0.03% 0.04% 0 13 0.00% 0.00% 0.03% 28
si 07 297855 8069226 Panorama 0.18% 0.04% 0.66% 0 88 0.08% 0.01% 0.02% 323
si 08 297665 8069194 Panorama 0.04% 0.00% 18.56% 0 24 0.01% 0.05% 0.01% 291
si 09 297574 8069203 Panorama 0.35% 0.00% 20.06% 0 67 0.12% 0.04% 0.00% 556
si 13 297526 8070169 Access Road 0.00% 0.00% 0.00% 0 16 0.01% 0.00% 0.00% 0
si 14 297525 8070168 Access Road 0.00% 0.01% 0.01% 0 13 0.01% 0.00% 0.02% 0
Historic drilling on the Siberia lode at Mt Gossan consists of 6 drill holes to a maximum depth of 40m.
Historic drill holes reported 2-3m intercepts of copper, silver and tin mineralisation, which is interpreted
to be close to true width due to the shallow northward dip of the Siberia lode. Historic drilling results
demonstrate consistency in both thickness and grade of the mineralisation; see announcement 4 Feb
2026: Future Facing Metals Acquisition Ag-Cu-Sn-Au-In:
• SPH4: 2m at 1.5% Cu, 50g/t Ag, 1.1% Sn, 4.1% Zn from 29m
• SPH5: 2m at 0.8% Cu, 23g/t Ag, 0.2% Sn 25m
• SPH6: 2m at 0.4% Cu, 13g/t Ag, 0.1% Sn, 0.7% Zn from 20m
• SPH7: 3m at 1.9% Cu, 46g/t Ag, 0.5% Sn, 0.6% Zn from 22m
• SPH8: 2m at 1.4% Cu, 35g/t Ag, 0.1% Sn, from 27.5m
• SPH9B: 2m at 1.8% Cu, 34g/t Ag, 0.5% Sn, 0.8% Zn from 38m
Investors should be aware that the historic drill results cannot be verified and are not suitable for use in
any future resource estimate. Investors are advised to not place undue reliance on historic drill results.
Table 1 Mt Gossan XRF rock chip results. Note to investors: portable XRF analysis is a spot
measurement and does not represent the average insitu grade of the mineralisation.
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Historic drilling was too shallow to test for potential repeats of the Siberia vein and did not target the Mt
Gossan Breccia. GG1 considers the Mt Gossan Breccia to be highly prospective for thicker breccia-style
mineralisation and lode structure repeats, which remain untested by historical drilling. Preparations for
drilling Mt Gossan are underway with drilling planned after the upcoming Copper Hills drill program.
XRF analyses of gossanous breccia outcrop returned consistently elevated copper, tin and arsenic with
elevated silver and indium present in some samples. Historic rock chip sampling of the breccia
returned a maximum value of 1.97 g/t Au highlighting the potential for gold as an accessory metal.
The Mt Gossan Breccia
The Mt Gossan breccia consists of a monomict clast supported brecciated sandstone with common
iron oxide (after sulphide) infill forming a large gossanous breccia across the top of Mt Gossan.
Sheeted and stockwork quartz veins with iron oxides after sulphide centre lines occur within the
breccia. The breccia has a mapped extent of 220m by 125m and is anomalous in Cu-Sn-Ag-In-Au,
making it a highly prospective drill target.
Figure 3 Oblique section through Mt Gossan and historic drilling showing the apparent dip of
the Siberia lode. True dip is estimated at ~40 degrees. Refer Figure 2 for section location.
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The breccia is a highly prospective target for copper, silver, tin, indium and gold.
The following figures show photographs of rocks from the gossan, demonstrating the nature of the
breccia system.
Figure 4 The Mt Gossan breccia, a massive, gossanous breccia forming the top of Mt Gossan.
Figure 5 Left: Mt Gossan quartz veined, gossanous sandstone breccia. Right: sheeted iron oxide
after sulphide filled quartz veins in gossan outcrop.
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Figure 6 left: Mt Gossan sandstone breccia. Right: clast supported brecciated sandstone with
iron oxide after sulphide matrix infill.
Figure 7 Left: Sandstone cut by sheeted quartz + iron oxide after sulphide veins and stockwork
veins containing iron oxide after sulphide. Right: Mt Gossan mine adit.
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Siberia
The Siberia historic mining area is located 1.4km west of Mt Gossan. The Siberia lode outcrops
continuously between Mt Gossan and Siberia and thickens in the Siberia area with the addition of a
hanging wall lode. Several historic drill intercepts support the potential to define a resource.
XRF Analysis of Mine Dump Samples
Samples from the mine dumps were analysed onsite by portable XRF, returning results of up to 24.7%
copper, 293 g/t silver, 4.2% tin, 558 g/t indium, 0.2% tungsten and 3.7% zinc. Bismuth was
anomalous in most samples. The XRF analysis results are shown below in Table 2.
Name Easting Northing Location Cu Zn As Ag In Sn W Pb Bi
% % % g/t g/t % % % g/t
si 29 295220.5 8069276 Siberia Lode, Mt Volk Mine 12.21% 0.03% 8.57% 168 72 0.15% 0.02% 0.11% 982
si 30 295221.5 8069275 Siberia Lode, Mt Volk Mine 0.23% 0.00% 9.92% 0 22 0.01% 0.01% 0.00% 734
si 31 295399.5 8069257 Siberia lode Morning Star Mine 23.31% 0.07% 0.71% 126 419 4.17% 0.19% 0.19% 874
si 32 295399.5 8069224 Siberia lode Morning Star Mine 24.72% 0.27% 9.00% 57 281 0.87% 0.06% 0.35% 323
si 33 295621.4 8069250 Siberia Lode, Siberia Mine 0.29% 0.11% 0.07% 0 30 0.10% 0.00% 0.05% 109
si 34 295620.4 8069251 Siberia Lode, Siberia Mine 21.76% 3.70% 0.92% 293 558 0.42% 0.02% 0.26% 39
si 35 295622.4 8069252 Siberia Lode, Siberia Mine 0.02% 0.00% 1.45% 0 32 0.01% 0.01% 0.03% 7
si 36 295624.4 8069250 Siberia Lode, Siberia Mine 0.06% 0.00% 4.26% 0 40 0.03% 0.02% 0.02% 365
Table 2 Siberia XRF rock chip results. Note to investors: portable XRF analysis is a spot
measurement and does not represent the average insitu grade of the mineralisation.
Figure 8 Left: A mine adit at Siberia. Right: a malachite (copper carbonate) stained rock from
the mine spoil dump.
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The Siberia lode dips at between 35 and 55 degrees to the north at the Siberia mine area. A series of
historic mine adits are driven into the vein over an 800m strike length at Siberia and are reported to
have produced copper and silver ore, which was transported to the Chillagoe smelter for treatment.
Siberia Historic Drill Results
Historic drilling at Siberia returned several significant intercepts including:
• SPH15: 8m at 2.6% Cu, 39 g/t Ag, 0.3% Sn from 15m
• SPH22: 6m at 1.2% Cu, 31 g/t Ag, 0.2% Sn from 33m
• SPH21: 3m at 0.7% Cu, 77 g/t Ag, 0.7% Sn, 4.7% Zn from 20m
• SPH13: 1m at 10.2% Sn from 14m
Investors should be aware that the historic drill results cannot be verified and are not suitable for use in
any future resource estimate. Investors are advised to not place undue reliance on historic drill results.
Several historic holes are interpreted to be too shallow to reach any mineralisation or have only tested
the thinner hanging wall lode and not the main Siberia lode. Historic drill intercepts were reported only
as significant intersections and 1m interval assays are not available. The reporting cutoff grade and
internal dilution assumptions are not known.
Figure 9 The Siberia mine adit entry into the Siberia lode looking east. The Siberia lode is near
continuous for 5km of strike.
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Historic drilling returned a very high grade tin intercept of 1m at 10.2% tin from 14m in SPH13 which is
interpreted to be depleted of copper and enriched in tin due to weathering. The mineralisation
transitions from shallow tin and arsenic dominant in the gossanous outcrop to copper-silver
mineralisation below the gossan. The Siberia lode is open at depth and along strike, with only a small
extent tested by historic drilling.
Figure 10 The Siberia area showing the mapped Siberia lodes, historic drill results and XRF rock
chip results.
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Down Dip Extension: Magnetic Target
The Siberia lode outcrop coincides with a series of east–west striking magnetic high anomalies that
align with the mapped lode position and progressively decrease in intensity toward the north in the dip
direction of the lode. The geometry of the magnetic response is interpreted to reflect a magnetic body
dipping to the north and plunging to the north-east.
Historic drilling undertaken by Loloma Mining in 1980 reported that magnetic pyrrhotite was present in
fresh rock in the Siberia lode. Loloma interpretated that the magnetic anomalies were directly related
to the mineralisation. GG1 interprets that these magnetic anomalies represent the down-dip
continuation of the Siberia lode, highlighting the potential to extend the mineralisation at depth.
Figure 11 Cross section through historic drilling at the Siberia Lode at the Siberia mining area.
Refer Figure 10 for location.
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Siberia and Mt Gossan Geology
The Siberia lode is interpreted to have formed during cooling and contraction of the Emuford Granite,
which generated tension fissures within the country rocks proximal to the granite contact located
approximately 400m south of the Siberia lode. This structure was exploited by magmatic hydrothermal
fluids resulting in polymetallic vein and breccia mineralisation. Siberia is hosted within sandstone units
and is sub-parallel to the contact of the Emuford Granite to the south.
The Emuford Granite forms part of the highly prospective O’Brien’s Creek Supersuite of late
Carboniferous granites (Kumar, 2022), a regionally significant intrusive suite associated with tin, base
metal and gold mineralisation throughout northern Queensland. The Siberia lode system demonstrates
substantial lateral continuity and is considered prospective for continued mineralisation at depth along
the granite contact.
Figure 6 The Mt Gossan - Siberia area over RTP magnetics showing magnetic anomalies
coinciding with mineralisation outcrop and the down dip magnetic target that is interpreted to
be the continuation of shallow dipping mineralisation to depth.
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Next Steps
Drilling is planned to commence at Copper Hills in May 2026, after which the drill rig is planned to
relocate to Chillagoe for a short program. Preparations are underway for drilling to follow shortly
thereafter at Herberton to test targets at Mt Gossan and Siberia.
Reconnaissance fieldwork at the Herberton Conductor Metals Project will continue. Work is planned at
the historic copper mines at the 4km long Elizabeth Bluffs trend and at the 1.3km long A1 Line.
Work on the Mt Wandoo gold development is ongoing, with modelling and studies progressing.
Announcements relating to exploration results for the Herberton Conductor Metals Project:
4 February 2026: Future Facing Metals Acquisition Ag-Cu-Sn-Au-In
27 April 2026: High grade copper, silver and indium at Copper Hills
This announcement was approved for release by the board of Green & Gold Minerals Ltd.
About the Herberton Conductor Metals Project:
About the Herberton Conductor Metals Project
The project is situated in a prolific historic
mining area located 100km west of Cairns, QLD.
The project lies within the Cu-Ag-Sn-In metal
zone, elements that are leveraged to future
facing electrification and AI data centre metal
demand. The tenements are unexplored in the
modern era and have high discovery potential.
The Company plans to emulate the success of
neighbouring explorers that have recently
delineated large resources from the prolific
mineral occurrences found across this region.
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About the Chillagoe Gold Project:
The Chillagoe Gold Project is located 25km
northwest of Chillagoe in north Queensland
adjacent to the significant Red Dome and Mungana
gold deposits. The project contains an inferred
JORC Resource1 of 32,400oz Au and 387,000oz Ag
at 1.1g/t Au and 13 g/t Ag within granted mining
leases at Wandoo.
Recent drill results include 6m at 11.1 g/t Au and
281 g/t Ag, 9m at 7.9g/t Au and 51 g/t Ag and 19m
at 2.9 g/t Au. Drill results announcement: here
The Company has a dual focus of extending the
Wandoo resource in preparation for mining studies,
while exploring for new gold discoveries in the
Mungana porphyry cluster.
COMPETENT PERSON’S STATEMENT
The information in this Announcement that relates to Exploration Targets and Exploration Results is based upon work
undertaken by Mr Quentin Hill who is a Member of the Australasian Institute of Geoscientists (AIG). Mr Hill has sufficient
experience that is 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’ (JORC Code). Mr Hill is an employee of Green & Gold Minerals
and consents to the inclusion in the report of the matters based on their information in the form and context in which it
appears.
The information that relates to Mineral Resources and Historic drill hole intersections at Mt Wandoo were previously
reported by the Company in its Prospectus, a copy of which is available on the Company’s website: Announcements | Green
& Gold Minerals Ltd. The Company is not aware of any new information or data that materially affects the information
included in this announcement and that all material assumptions and technical parameters underpinning the estimates
continue to apply and have not material changed. 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 announcement.
FORWARD LOOKING STATEMENTS
This announcement contains forward-looking statements that are subject to risk factors associated with mineral exploration,
mining and business activities. Forward-looking statements include, but are not limited to, statements concerning the timing
and success of exploration activities, geological interpretations, potential mineralisation, future production goals, funding
requirements, project development plans and market conditions. These statements are based on current expectations,
assumptions and forecasts and involve known and unknown risks, uncertainties and other factors that may cause actual
results, performance or achievements to differ materially from those expressed or implied in such statements.
Forward-looking statements are inherently subject to business, economic, competitive, political and social uncertainties and
contingencies. Many factors could cause the Company’s actual results to differ materially from those expressed or implied
in any forward-looking information, including risks relating to exploration results, commodity price fluctuations, changes in
government policy, environmental risks, operational risks, financing availability and general economic conditions.
There can be no assurance that exploration activities will result in the definition of a mineral resource or that any identified
mineralisation will prove to be economically recoverable. Investors are cautioned not to place undue reliance on forward-
ASX code:GG1 Contact: Quentin Hill – Managing Director
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Page 15
looking statements. Except as required by applicable law or the ASX Listing Rules, the Company does not undertake any
obligation to update or revise any forward-looking statements to reflect events or circumstances after the date of this
announcement.
References
Kumar, A, 2022: The geological setting of the indium-rich Baal Gammon and Isabel Sn-Cu-Zn deposits
in the Herberton Mineral Field, Queensland, Australia. Avish A. Kumar, Ioan V. Sanislav, Paul H.G.M.
Dirks, October 2022.
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JORC Table 1
Section 1 Sampling Techniques and Data: portable XRF rock chip and historic drill results
Criteria JORC Code explanation Commentary
Sampling
techniques
• Nature and quality of sampling (eg 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.
• Portable XRF results at Mt Gossan and Siberia are spot measurements
of rock fragments from the mine dumps and from exposures at surface
and in mine shafts and adits. These measurements do not represent
averages of the mineralisation.
• Historic soil results at Mt Gossan – Siberia were collected by Loloma
Mining in 1980. There is no record of the sampling technique used by
Loloma Mining.
Drilling
techniques
• Drill type (eg core, reverse circulation, open-
hole hammer, rotary air blast, auger, Bangka,
sonic, etc) and details (eg 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).
• Loloma Limited drilled 31 RC percussion holes at Siberia – Mt Gossan
trend. The drill diameter is not stated in historic reports.
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.
• No record is available of drill sample recovery in historic reports.
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.
• No lithology logs have been located for Loloma Mining drilling.
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.
• No record has been located of the sampling technique for RC drilling by
Loloma Mining.
Quality of
assay data
and
laboratory
tests
• 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 instruments, etc, the
parameters used in determining the analysis
including instrument make and model,
reading times, calibrations factors applied
and their derivation, etc.
• XRF analysis was performed using an Hitachi MET-8000 device in Mining-
FP mode using a 30 second measurement duration. The instrument was
recently calibrated by the OEM.
• XRF measurements are not as accurate as laboratory assays and do not
reliably predict average insitu grades. XRF measurements are intended
to confirm which metals of economic interest are present rather than the
average grade of the mineralisation.
ASX code:GG1 Contact: Quentin Hill – Managing Director
Web: greengoldminerals.com.au Email: qhill@greengoldminerals.com.au
GREEN & GOLD MINERALS
Page 17
Criteria JORC Code explanation Commentary
• Nature of quality control procedures adopted
(eg standards, blanks, duplicates, external
laboratory checks) and whether acceptable
levels of accuracy (ie lack of bias) and
precision have been established.
• No information has been located regarding the assay technique used by
Loloma Mining for Siberia and Mt Gossan drilling.
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.
• Rock chip samples have been submitted for laboratory assay for the
verification of XRF results and to test for gold. The results are pending.
• No twinning was done by Loloma Mining at Mt Gossan or Siberia drilling.
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.
• Specificat
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