C/o Maitland (Mauritius) Limited
C/o Maitland (Mauritius) Limited Suite 510, 5th Floor, Barkly Wharf, Le Caudan Waterfront, Port Louis, Mauritius
www.alphaminresources.com
News Release 2015-03 ALPHAMIN ANNOUNCES A MINERAL RESOURCE UPGRADE AT ITS WHOLLY OWNED MPAMA NORTH PROSPECT, BISIE TIN PROJECT, DEMOCRATIC REPUBLIC OF THE CONGO
Highlights
- The updated Mineral Resource consists of:
- Indicated Resource of 2.65 million tonnes @ 4.49% Sn for 119,240 tonnes
contained tin using a 0.5% Sn cut-off
- Inferred Resource of 1.2 million tonnes @ 3.6% Sn for 42,800 tonnes
contained tin using a 0.5% Sn cut-off
- The Mineral Resource was defined over 550m down plunge to a depth of 450m
and is open at depth.
- Tin mineralisation has a strong chute geometry with a high grade chute
interpreted to plunge to the north.
- Significant Results from Extension Drilling at depth at Mpama North included:
- 11m @ 13.40% Sn from 427m
- 17m @ 2.27% Sn from 316m
- 15m @ 5.27% Sn from 454m
- New Discovery over 75m strike length immediately south and contiguous to
Mpama North (open to south and at depth)
- Significant Result from this area includes:
- 20m @ 4.31% Sn from 83m
- Significant Results from 2 holes drilled at Mpama South:
- 32.8m @ 2.46% Sn from 192.2m
- 1.65m @ 6.57% Sn from 320m and 23.65m @ 1.15% Sn from 325m
MAURITIUS – March 26th , 2015 – Alphamin Resources Corp (AFM: TSXV, “Alphamin” or the “Company”) is pleased to announce an updated Inferred and Indicated Mineral Resource at the Mpama North target on its wholly owned Bisie Tin Prospect (Bisie Project) in east central Democratic Republic of the Congo (DRC).
Mpama North
The updated Mineral Resource estimate at Mpama North has increased the current resource to 2.65 million tonnes @ 4.49% Sn for 119,240 tonnes contained tin (at 0.5% Sn cut-off) in the Indicated Category and 1.2 million tonnes @ 3.6% Sn for 42,800 tonnes contained tin (at 0.5% Sn cut-off) in the Inferred Category as shown in Table 1.
Seventy-four NQ holes and 21 PQ holes drilled for a metallurgical sample were used in the Mineral Resource. The Mineral Resource Area extends 550m in the down plunge direction to a maximum vertical depth of approximately 450m below surface, the high grade mineralisation being open at depth. The top 50m has been depleted by artisanal mining activity and any mineralisation remaining in this area was not included in the Mineral Resource.
| Table 1: Bisie Mpama North Zone Mineral Resource at 0.50% Sn Cut-Off Grade, 15 March 2015 | |||||||
|---|---|---|---|---|---|---|---|
| Category | Tonnes (Millions) | Sn % | Sn Tonnes (Thousands) | Cu % | Zn % | Pb ppm | Ag g/t |
| Indicated | 2.65 | 4.49 | 119.24 | 0.29 | 0.16 | 100 | 2.4 |
| Inferred | 1.2 | 3.6 | 42.8 | 0.25 | 0.14 | 130 | 2.4 |
Notes:
1. All tabulated data has been rounded and as a result minor computational errors may occur
2. Mineral Resources which are not Mineral Reserves have no demonstrated economic viability.
3. Alphamin has a 100 percent interest in the Bisie Project. Accordingly, the Gross and Net Attributable Mineral Resource are the same.
The Mineral Resource was prepared by an independent consulting company, The MSA Group (MSA), of Johannesburg, South Africa and was estimated using The Canadian Institute of Mining, Metallurgy and Petroleum (CIM) Best Practice Guidelines (2003). The Mineral Resource is reported in accordance with the 2014 CIM Definition Standards which have been incorporated by reference into National Instrument 43-101 – Standards of Disclosure for Mineral Projects (NI 43-101). A technical report prepared in compliance with NI-43-101 with respect to the updated Mineral Resource estimate will be filed on www.sedar.com.
The Mineral Resource estimate was based on Sn, Cu, Pb, Zn and Ag assays and density measurements from 62 of the 74 NQ size diamond holes drilled at Mpama North. Drill holes not included in the estimate were within the top 50m depleted zone or drilled to the north and south of the main zone of mineralisation. A three dimensional grade block model was created using Ordinary Kriging. Table 2 below details a summary of the Mineral Resource estimate and pertinent reporting criteria.
Mineralisation was defined in three discrete vein systems, namely the Hangingwall, Main and Footwall Veins. The Main Vein generally occurs over thicknesses of between 2m and 22m with an average thickness of approximately 9m and is the most consistent overall, reporting the highest grades. The Hanging Wall Vein mineralisation occurs between 4m and 20m above the Main Vein, is generally between 0.5m and 4m wide and occurs in the northern area of the deposit although, it appears to taper out northwards. The middling between the Hanging Wall Vein and the Main Vein decreases from north to south and it is possible that this vein merges into the Main Vein in the central area. The Footwall Vein mineralisation occurs between 2m and 12m below the Main Vein. This zone is restricted to the southern areas, is very narrow (<50 cm) but high grade in its most northern occurrences. The zone then thickens to the south to over 10m, but with a lower grade. It is possible that this vein merges into the Main Vein in the central portion of the deposit. The Main Vein accounts for 95% of the Mpama North Resource.
Highly significant results have been received from the deep extension drilling confirming continuity of high grade tin mineralisation which remains open at depth. These include 11m @ 13.40% Sn from 427m in BGC072, 17m @ 2.27% Sn from 316m in BGC074 and 15m @ 5.27% Sn from 454m in BGC077.
Infill drilling also returned highly satisfactory results, with 16m @ 6.61% Sn from 79m in BGC080 and 10m @ 6.45% Sn from 146m in BGC070, while metallurgical drilling highlighted exceptional results such as 22.4m @ 10.76% Sn from 95.6m in METBGC022 and 17.6m @ 5.77% Sn from 94.4m in METBGC024. All latest results are summarised in Table 3 and Table 4, and significant results are shown in Figure 1. The Company now plans to extend drilling down to 600m below surface.
In addition, the Company is pleased to announce a new discovery referred to as The Wedge immediately south and adjoining the current Mineral Resource Area. BGC086 drilled in the Wedge reported 20m @ 4.31% Sn from 83m. Visible cassiterite veins and veinlets with accumulated thicknesses of more than 1 metre have been observed in holes drilled over an additional 75m to the south. Current drilling in the Wedge is at 25m x 25m centres and is aimed at defining Measured Mineral Resources in the planned Mineral Resource update in June 2015. The Wedge is likely to add significant high grade Mineral Resources to those reported in this press release.
Mpama South
Three diamond drill holes were drilled at Mpama South during the 4th Quarter of 2014. Highly significant mineralisation including 32.8m @ 2.46% Sn from 192.2m was reported from drill hole BGH011 and 1.65m @ 6.57% Sn from 320m and 23.65m @ 1.15% Sn from 325m in BGH013. Two diamond drill rigs will now be moved to commence a first Mineral Resource drilling programme at Mpama South. These initial drill results are highly encouraging and support potential for a zone of higher grade mineralisation, similar to that identified at Mpama North, to exist at Mpama South. A maiden Mineral Resource is expected from Mpama South during the 3rd Quarter 2015.
Exploration Drilling
The 2 kilometre tin in soil anomaly further south along the ridge will be drill tested during the 2nd Quarter. This is in line with the Company’s strategy of identifying new additional Mineral Resources within the Bisie Project area
ON BEHALF OF THE BOARD OF DIRECTORS
Bruce Curling, Chief Executive Officer
Neither the TSX Venture Exchange nor its regulation services provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this News Release.
CAUTION REGARDING FORWARD LOOKING STATEMENTS
Information in this news release that is not a statement of historical fact constitutes forward-looking information. Such forward-looking information includes statements regarding the Company’s planned exploration programs. Actual results, performance or achievements of the Company may vary from the results suggested by such forward- looking statements due to known and unknown risks, uncertainties and other factors. Such factors include, among others, that the business of exploration for tin and other precious and base minerals involves a high degree of risk and is highly speculative in nature; few properties that are explored are ultimately developed into producing mines; geological factors; the actual results of current and future exploration; changes in project parameters as plans continue to be evaluated, as well as those factors disclosed in the Company’s publicly filed documents.
There can be no assurance that any mineralisation that is discovered will be proven to be economic, or that future required regulatory licensing or approvals will be obtained. However, the Company believes that the assumptions and expectations reflected in the forward-looking information are reasonable. Assumptions have been made regarding, among other things, the Company’s ability to carry on its exploration activities, the sufficiency of funding, the timely receipt of required approvals, the price of tin and other precious and base metals, that the Company will not be affected by adverse political events, the ability of the Company to operate in a safe, efficient and effective manner and the ability of the Company to obtain further financing as and when required and on reasonable terms. Readers should not place undue reliance on forward-looking information.
Alphamin does not undertake to update any forward-looking information, except as required by applicable laws.
COMPETENT PERSON’S STATEMENT
The Mineral Resource estimate has been completed by Mr. J.C. Witley (BSc Hons, GDE) who is a geologist with 26 years’ experience in base and precious metals exploration and mining as well as Mineral Resource evaluation and reporting. He is a Principal Mineral Resource Consultant for The MSA Group (an independent consulting company), is a member in good standing with the South African Council for Natural Scientific Professions (SACNASP) and is a Member of the Geological Society of South Africa (GSSA). Mr Witley has the appropriate relevant qualifications and experience to be considered a “Qualified Person” for the style and type of mineralisation and activity being undertaken as defined in National Instrument 43-101 Standards of Disclosure of Mineral Projects.
Mr Witley has reviewed and approved the technical content of this press release.
Figure 1: Position of Drill Collars and Significant Results
Table 2: Summary of Mineral Resource Estimate and Reporting Criteria
| Drilling techniques | All drillholes were diamond drill cored and drilled from surface (mostly NQ) at angles of between -60° and -75°. The drillholes were drilled from east to west along section lines spaced 50m apart. 21 PQ sized holes from a metallurgical drilling campaign were included that were drilled in three clusters approximately 25 m apart. |
| Logging | All of the drillholes were geologically logged by qualified geologists. The logging was of an appropriate standard for grade estimation. |
| Drill sample recovery | Core recovery in the mineralised zones was observed to be very good and was on average greater than 95%. Five of the shallow drillholes intersected artisanal workings and so recovery of the high grade mineralisation was poor and therefore the data from these holes were not used for grade estimation. |
| Sampling methods | Half core samples were collected continuously through the mineralised zones after |
| being cut longitudinally in half using a diamond saw. Drillhole samples were taken at nominal 1 m intervals, which were adjusted to smaller intervals in order to target the vein zones. Lithological contacts were honoured during the sampling. MSA’s observations indicated that the routine sampling methods were of a high standard and suitable for evaluation purposes. | |
| Quality of assay data and laboratory tests | The assays were conducted at ALS Chemex in Johannesburg where samples were analysed for tin using fused disc ME-XRF05 conducted on a pressed pellet with 10% precision and an upper limit of 5000 ppm. Over limit samples were sent to Vancouver for ME-XRF10 which uses a Lithium Borate 50:50 flux with an upper detection limit of 60% and precision of 5%. ME-ICP61, HF, HNO3, HCL04 and HCL leach with ICP-AES finish was used for 33 elements including base metals. ME-OG62, a four acid digestion, was used on ore grade samples for Pb, Zn, Cu & Ag. External quality assurance of the laboratory assays for the Alphamin samples was monitored by the insertion of: • Blank samples, certified reference materials and duplicate samples were inserted with the field samples accounting for approximately 10% of the total sample set. • 150 Pulp duplicates were sent to SGS (Johannesburg) in 2013 for confirmation assay. These formed approximately 6% of the total data set at that time. Included with the pulp duplicates were 15 CRM’s. The QAQC measures used by Alphamin revealed the following: • The high grade CRM (31.42% Sn) indicated that an over-assay of approximately 8% may have occurred. The lower grade CRMs (<2% Sn) indicated that the Sn and Cu assays were accurate and unbiased consistently within two standard deviations of the accepted CRM value. • The field duplicates confirmed the nuggetty nature of the tin mineralisation. The majority of the duplicate assays were within 20% of the field sample. • Blank samples indicated that no significant contamination occurred for most of the programme. Seven blank assays returned Sn values of between 0.005% and 0.02%, which is not considered material to the project. • The pulp duplicates assayed by SGS showed excellent correlation with the ALS assays at both high and low grade ranges. MSA carried out an assessment of the impact of the possible over-assaying of the high grade samples indicated by the high grade CRM assays. The impact may result in the Mineral Resource grade being overstated by as much as 5%. Work is ongoing in order to resolve this issue. |
| Verification of sampling and assaying | MSA observed the mineralisation in the cores and compared it with the assay results. MSA found that the assays generally agreed with the observations made on the core. MSA took ten quarter core field duplicates for independent check assay, which confirmed the original sample assays within reasonable limits for this style of mineralisation. The nature of the mineralisation intersected since the site inspection in July 2013 was observed to be consistent with that intersected in the previously drilled 37 drillholes. |
| Since the last site visit in May 2104, Alphamin has completed 28 drillholes at Mpama North. The results of these holes are consistent with those drilled up until the previous site inspection by the Qualified Person. | |
| Location of data points | All of the Bisie surface drillhole collars have been surveyed. Down-hole surveys were completed for all of the holes drilled at Mpama North. |
| Tonnage factors (in situ bulk densities) | Specific gravity determinations were made for a selection of the drillhole samples using the Archimedes principal of weight in air versus weight in water. These were applied to the sample data using a demonstrated linear regression of tin grade with specific gravity. The assigned specific gravity was interpolated into the block model using Ordinary Kriging. |
| Data density and distribution | The drillholes were drilled from east to west along section lines spaced 50m apart. Along the section lines the drillholes intersected the mineralisation between 25 m and 50 m apart in most of the Mineral Resource area with drilling being sparser, up to 100 m apart, in the deeper northern area. 21 PQ sized holes from a metallurgical drilling campaign were included that were drilled in three clusters approximately 25 m apart. Within the clusters, the PQ holes were drilled approximately 5 m apart. In the Mineral Resource area, 62 of the 74 NQ drillholes completed were used for the grade estimate. Seven of the holes intersected mineralisation outside of the area currently defined as a Mineral Resource and five of the shallow drillholes intersected artisanal workings. The data from these twelve holes were not used for grade estimation. |
| Database integrity | Data were stored in an Access database. MSA completed spot checks on the database and is confident that the Alphamin database is an accurate representation of the original data collected. |
| Dimensions | The area defined as a Mineral Resource extends approximately 550 m in the down plunge direction. It extends for between approximately 200 m and 300 m in the plane of mineralisation perpendicular to the plunge. The main zone of the Mineral Resource, which accounts for 94% of the Mineral Resource, is on average approximately 9 m thick, although is narrower (less than 1 m) at the margins and up to 20 m thick in the central areas. The zones that occur several metres above and below the main zone are generally narrower than the main zone and cover areas of between 100 m and 200 m in the dip and strike directions. |
| Geological interpretation | The mineralised intersections in drill core are clearly discernible. The Mineral Resource is interpreted to occur as tabular mineralised zones, dipping 65° to the east, containing several narrow veins, blocks and disseminations of cassiterite. The mineralised zones are hosted in chlorite schist that is the result of intense alteration that may originally have been a distinct stratigraphic interval. The Mineral Resource may be affected by a number of faults that are sub-parallel to the mineralisation causing local displacement. The precise locations of faults have not been determined. • The Main Vein mineralisation consists of a number of uncorrelated cassiterite veins within pervasively chloritised schist. This zone generally occurs over |
| thicknesses of between 2 m and 22 m with an average thickness of approximately 9 m. This zone is generally the highest grade and most consistent overall. • Hanging Wall Vein mineralisation occurs within partly chloritised schist and micaceous schist between 4 m and 20 m above the Main Vein. This zone of mineralisation is generally between 0.5 m and 4 m wide and occurs in the northern area of the deposit although appears to taper out northwards. The middling between the Hanging Wall Vein and the Main Vein decreases from north to south and it is possible that this vein merges into the Main Vein in the central parts of the deposit. • Footwall Vein (FW Vein) mineralisation occurs within the micaceous schist and amphibolite schist between 2 m and 12 m below the Main Vein. This zone is restricted to the southern areas, is very narrow (<50 cm) and high grade in its most northern occurrences but thickens to the south to over 10 m but of low grade where it likely consists of several narrow cassiterite veins with waste zones between. It is possible that this vein merges into the Main Vein in the central parts of the deposit. A three dimensional wireframe model was created for the three zones of mineralisation based on a grade threshold of 0.30% Sn. The main zone is the most consistent zone occurring within chlorite schist. Narrower less continuous zones occur above and below the main zone within chlorite-mica schists. | |
| Domains | The mineralisation was modelled as three tabular zones containing irregular vein style mineralisation. A hard boundary was used to select data for estimation in order to honour the sharp nature of vein boundaries. |
| Compositing | Sample lengths were composited to 1 m. Composites of less than 1 m occurred in the narrow vein areas, which were retained. Accumulations of Sn%-density-composite length were calculated for grade estimation. |
| Statistics and variography | Two populations of Sn mineralisation occur, a high grade population of cassiterite veins and a lower grade population containing disseminated cassiterite as vein fragments and blebs. The data were separated into the two statistical populations, which resulted in the coefficient of variation for the Sn accumulation composites in the high grade population being 0.65 and for the lower grade population being 1.24. The histograms are positively skewed. Normal Scores variograms were calculated in the plane of the mineralisation, down- hole and across strike. Variogram ranges for the Sn accumulation in the main zone were modelled at 70 m down-plunge, 48 m dip and 4 m across strike. Reliable variograms could not be produced for either the hangingwall or footwall zones and the main zone variogram was used to estimate these areas. |
| Top or bottom cuts for grades | Top cuts were applied to outlier values that were above breaks in the cumulative probability plot for metals other than Sn. The high grade Sn values occur as a distinct population with a low coefficient of variation and no top-cuts were considered necessary. |
| Data clustering | 21 PQ sized holes from a metallurgical drilling campaign were included that were drilled in three close clusters approximately 25 m apart. Within the clusters the PQ holes were drilled approximately 5 m apart. Outside of the metallurgical sampling area is the grid is approximately regular. |
| Block size | 20 mN by 2 mE by 10 mRL three dimensional block models, as optimised using a Kriging Neighbourhood Analysis. The blocks were divided into sub-cells to better represent the interpreted mineralisation extents. The blocks were rotated into the plane of mineralisation prior to estimation. |
| Grade estimation | The accumulation of grade, density and composite length were estimated using Ordinary Kriging. Estimation parameters were optimised using a Kriging Neighbourhood Analysis. The Sn%-density-composite length accumulations were divided into a high grade population (>30 %t/m) and a lower grade population (<30 %t/m). The probability of a block containing values above and below this threshold was estimated by Indicator Kriging. The high and low grade populations were estimated separately using Ordinary Kriging and the block model grade was then assigned based on the estimated grade of the high and low grade and their proportion in each block. A minimum number of 6 and a maximum of 24 one metre composites were required for each Sn-accumulation population. For the subordinate zones, this was reduced to a minimum of 4. Search distances and orientations were aligned with the variogram range. Estimates were extrapolated in the plane of the mineralisation for a maximum distance of 40 m from the nearest drillhole intersection, this being considered by MSA to be the limit of reasonable geological interpretation for this style of mineralisation, it being possible that the mineralisation could terminate abruptly. Should a barren drillhole intersection occur that constrains the limit of the Mineral Resource, the limit was taken as half the distance between the mineralised and un- mineralised drillhole intersections up to a maximum of 40 m. |
| Resource Classification | The mineralisation was classified as Indicated Mineral Resources if block estimates were achieved with the required minimum number of samples within the variogram range. This was generally where the drilling was within the 50 m spaced section lines and drilling was closer than 40 m apart in the dip direction. The remainder of the interpreted model within the sparser drilled area was classified as Inferred Mineral Resources with a maximum extrapolation from a drillhole of 40 m. The high grade mineralisation of reasonable tonnage leads no doubts as to reasonable potential for economic extraction, it being one of the highest grade undeveloped tin deposits in the world. |
| Mining Cuts | The thickness of the mineralisation was honoured in the estimate and as a result some areas will be more sensitive to dilution than others. The thickness, grade and steep dip implies that the Mineral Resource can be extracted using established underground mining methods. |
| Metallurgical factors or assumptions | The tin mineralisation occurs as cassiterite, an oxide of tin (SnO2). The Cu, Zn and Pb mineralisation occurs as sulphides. Each of these minerals is amenable to standard processing techniques for each metal. |
| Legal Aspects and Tenure | Alphamin through its wholly owned DRC subsidiary, Mining and Processing Congo Sprl, has a Mining License PE 13155 which covers a portion of its wholly owned PR5266 and includes the Bisie Tin Prospect. |
Audits, reviews and site The following review work was completed by MSA:
inspection
- Inspection of approximately 25% of the Alphamin cores used in the Mineral Resource estimate
- Database spot check
- Inspection of drill sites
- Independent check sampling
Table 3: Summary of Assay Results in Drill Holes
| Hole ID | GPS | GPS | EOH | Azi- | Inclina- | Element | From | To (m) | Width | Grade | Type | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hole ID | Easting | Northing | RL | EOH | muth | tion | Element | (m) | To (m) | (m) | Grade | Type | |||||||||
| BGC058A* | 582948 | 9885802 | 757 | 145 | 270 | -70 | Sn (%) | 122 | 142 | 20 | 1.20 | Infill | |||||||||
| Incl. | Sn (%) | 127.5 | 134 | 6.5 | 2.58 | ||||||||||||||||
| Zn (%) | 115 | 116 | 1 | 1.03 | |||||||||||||||||
| Cu (%) | 123 | 131.2 | 8.2 | 0.24 | |||||||||||||||||
| Cu (%) | 136 | 138 | 2 | 0.08 | |||||||||||||||||
| BGC059A* | 582977 | 9885858 | 734 | 177 | 270 | -69 | Sn (%) | 153 | 163.5 | 10.5 | 1.40 | Infill | |||||||||
| Incl. | Sn (%) | 157 | 160.4 | 3.4 | 2.82 | ||||||||||||||||
| Sn (%) | 167.45 | 170 | 2.55 | 0.15 | |||||||||||||||||
| Zn (%) | 135 | 137 | 2 | 2.13 | |||||||||||||||||
| Cu (%) | 137 | 142 | 5 | 0.19 | |||||||||||||||||
| Cu (%) | 154 | 165 | 11 | 0.20 | |||||||||||||||||
| La (ppm) | 160 | 160.4 | 0.4 | 1740.0 | |||||||||||||||||
| BGC060* | 582979.3 | 9885859 | 734 | 225 | 270 | -81 | Sn (%) | 203.7 | 215.5 | 11.8 | 5.80 | Extension | |||||||||
| Incl. | Sn (%) | 210 | 214.5 | 4.5 | 11.42 | ||||||||||||||||
| Cu (%) | 204.18 | 215.5 | 11.32 | 0.74 | |||||||||||||||||
| Incl. | Cu (%) | 205.5 | 210.7 | 5.2 | 1.19 | ||||||||||||||||
| BGC061A* | 583065 | 9886002 | 747 | 269.5 | 270 | -60 | Sn (%) | 242.2 | 253 | 10.8 | 2.59 | Extension | |||||||||
| Sn (%) | 261.3 | 263 | 1.7 | 31.06 | |||||||||||||||||
| Ag (g/t) | 248 | 249 | 1 | 32.3 | |||||||||||||||||
| Cu (%) | 246.5 | 249 | 2.5 | 0.20 | |||||||||||||||||
| Cu (%) | 253 | 263 | 10 | 0.10 | |||||||||||||||||
| BGC063A* | 582987 | 9885808 | 738 | 194 | 270 | -69 | Sn (%) | 159.5 | 185.55 | 26.05 | 1.60 | Infill | |||||||||
| Incl. | Sn (%) | 172.3 | 177.4 | 5.1 | 5.12 | ||||||||||||||||
| Ag (g/t) | 181.5 | 182.45 | 0.95 | 26.3 | |||||||||||||||||
| Cu (%) | 169 | 185 | 16 | 0.97 | |||||||||||||||||
| BGC064A* | 582908 | 9885909 | 755 | 135.1 | 270 | -74 | Sn (%) | 85.2 | 85.6 | 0.4 | 0.32 | Infill | |||||||||
| Sn (%) | 107 | 118 | 11 | 1.82 | |||||||||||||||||
| Incl. | Sn (%) | 113 | 115.2 | 2.2 | 7.78 | ||||||||||||||||
| Sn (%) | 123.1 | 126 | 2.9 | 2.73 | |||||||||||||||||
| Zn (%) | 123.1 | 123.5 | 0.4 | 1.18 | |||||||||||||||||
| Cu (%) | 114.1 | 118 | 3.9 | 1.18 | |||||||||||||||||
| Cu (%) | 123.5 | 127 | 3.5 | 0.12 | |||||||||||||||||
| Cu (%) | 131 | 135.1 | 4.1 | 0.24 | |||||||||||||||||
| BGC065 | 582777 | 9885204 | 825 | 121.3 | 270 | -60 | Sn (%) | 61 | 62 | 1 | 1.03 | Extension | |||||||||
| Sn (%) | 66.05 | 70.4 | 4.35 | 0.52 | |||||||||||||||||
| Sn (%) | 86 | 86.8 | 0.8 | 0.13 |