Bluestone Drills 11.0 meters grading 86.3 g/t Gold and 365 g/t Silver including 4.2 meters grading 194 g/t Gold and 810 g/t Silver
November 10, 2020 – VANCOUVER, BRITISH COLUMBIA – Bluestone Resources Inc. (TSXV:BSR | OTCQB:BBSRF) ("Bluestone" or the "Company") is pleased to report additional high grade drill assays received from the drilling program currently underway in the South Zone of the Cerro Blanco gold project, where five drill rigs are operational both in the underground workings and on surface. Results continue to confirm the continuity and high grade of the vein style mineralization within and outside of the current reserve envelope, including bonanza grades recently intersected of 674.8 g/t Au and 2,863 g/t Ag over 1.1 meter (true thickness).
Results from four underground and three surface holes are reported in this press release. Highlights include the following uncapped intercepts representing true widths of the veins.
- 11.0 meters grading 86.3 g/t Au and 365 g/t Ag including 1.1 meters grading 674.8 g/t Au and 2,863 g/t Ag (UGCB20-179)
- 13.3 meters grading 24.9 g/t Au and 38.6 g/t Ag including 8.1 meters grading 31.0 g/t Au and 33.5 g/t Ag (UGCB20-176)
- 13.5 meters grading 4.4 g/t Au and 23.6 g/t Ag (UGCB20-176)
- 1.2 meters grading 23.6 g/t Au and 91 g/t Ag (UGCB20-179)
- 1.5 meters grading 26.5 g/t Au and 374 g/t Ag (CB20-424)
- 4.3 meters grading 11.6 g/t Au and 35.7 g/t Ag (CB20-424)
- 3.0 meters grading 19.1 g/t Au and 15 g/t Ag (CB20-427)
David Cass, Vice President of Exploration, commented, "These latest results continue to highlight the consistency and continuity of the high-grade veins at Cerro Blanco. Results from hole UGCB20-179 represent one of the highest-grade intercepts ever drilled, including the highest-ever gold assay received to date of 675 g/t Au and 2,864 g/t Ag over 1.2 meters. Importantly, this high-grade zone is situated in the upper reaches of the South Zone orebody above the current underground mine infrastructure, and confirms extensions to several veins outside of the current feasibility study mine plan and therefore indicates excellent potential for further growth in that area of the deposit.”
The focus of the drill program is to improve the definition of key veins in parallel to expanding the high-grade mineralization for known veins outside of the current resource envelope. The work is expected to build on the infill drill program completed in the North Zone of the deposit in 2019 which resulted in an updated resource estimate of 1.41 million ounces of gold averaging 10.3 g/t in Measured and Indicated categories (see Technical Report dated January 29, 2019 and updated in the press release dated November 6, 2019).
Jack Lundin, CEO, commented, "The team has done an excellent job navigating through this drill program and delivering exceptional intercepts in the South Zone of the Cerro Blanco orebody. Our understanding of the geology in both the North and South Zone continues to improve and we see further upside potential for additional high-grade resources. As we add value through the drill bit, we will look to capture the details in future mine plan optimizations.”
Drill Intercepts (this Press Release)
|HOLE ID||FROM (m)||TO (m)||CORE INTERVAL (m)||TRUE WIDTH (m)||Au g/t||Ag g/t||Vein ID|
N - New or un-modelled vein. Intervals in bold are cited in the text of the news release. Grades are un-cut. A complete table with hole coordinates and azimuth/ dip information accompany the plan view attached to this release.
Plans and sections including drill hole locations and core photos can be accessed by clicking HERE.
Drill hole Summary
Drill holes UGCB20-175, UGCB20-176, UGCB20-178 were drilled at steep angles from the underground workings with the main objective to infill drill the high-grade portion of the principal feeder vein VS_01 and associated sub-parallel splay VS_21. All three holes were successful in intercepting the target, with a wide zone of high grade mineralization drilled in UGCB20-176 of 13.3 meters true width associated with a thick vein and hanging wall stockworks that assayed 24.9 g/t Au and 39 g/t Ag including 8.1 meters grading 31 g/t Au (VS_01). Several new and wide steeply dipping veins were identified to the east of the main deposit in hole UGCB20-178 (13.5 meters @ 4.4 g/t Au) confirming the potential of this poorly drilled portion of the South Zone for additional resources.
Drill hole UGCB20-179 was a step-out hole drilled +14 degrees (upwards) from the underground workings targeting extensions of several veins in the upper north-east portion of the South Zone. A 11.9 meter intercept grading 86.3 g/t Au and 365 g/t Ag was drilled including vein VS_07 and VS-08, with VS_08 assaying 194 g/t Au and 40.2 g/t Ag over 4.5 meters, which included the highest gold assay ever received at Cerro Blanco of 674.8 g/t Au over 1.2m. The high-grade veins are separated by lower grade middling characterized by stockworks and weak silicification in Mbt sandstones.
Drill holes CB20-424, CB20-426, CB20-427 were drilled from surface as infill and to test extensions to several vein swarms in the north-eastern part of the South Zone, with several new veins intersected, including 3 meters assaying 19.1 g/t Au and 15 g/t Ag in CB20-427 from 215.8 meters.
Precious metal mineralization at Cerro Blanco is associated with classic low sulphidation quartz - adularia epithermal veins and vein swarms hosted in altered sequence of volcanoclastic and sedimentary rocks. Higher grades (>20 g/t Au and >60 g/t Ag) are associated with visible gold, electrum and silver sulphides in ginguro-style colloform-banded veins.
Quality Analysis and Quality Control
Assay results listed within this release were performed by Inspectorate Laboratories (“Inspectorate”), a division of Bureau Veritas, which are ISO 17025 accredited laboratories. Logging and sampling are undertaken on site at Cerro Blanco by Company personnel under a QA/QC protocol developed by Bluestone. Samples are transported in security-sealed bags to Inspectorate Labs in Managua, Nicaragua for sample preparation. Sample pulps are then shipped to Inspectorate Laboratories in Reno, NV, USA, and assayed using industry-standard assay techniques for gold and silver. Gold and silver were analysed by a 30-gram charge with atomic absorption and/or gravimetric finish for values exceeding 5 g/t Au and 100 g/t Ag. Analytical accuracy and precision are monitored by the analysis of reagent blanks, reference material, and replicate samples. Quality control is further assured by Bluestone’s QA/QC program, which involves the insertion of blind certified reference materials (standards) and field duplicates into the sample stream to independently assess analytical precision and accuracy of each batch of samples as they are received from the laboratory. A selection of samples is submitted to ALS Chemex Laboratories in Vancouver for check analysis and additional quality control.
David Cass, P.Geo., Vice President Exploration, is the designated Qualified Person for this news release within the meaning of National Instrument 43-101 and has reviewed and verified that the scientific and technical information set out above in this news release is accurate and therefore approves this written disclosure of the technical information.
About Bluestone Resources
Bluestone Resources is a mineral exploration and development company that is focused on advancing its 100%-owned Cerro Blanco Gold and Mita Geothermal projects located in Guatemala. A Feasibility Study on Cerro Blanco (see press release January 29, 2019) returned robust economics with a quick pay back. The average annual production is projected to be 146,000 ounces per year over the first three years of production with all-in sustaining costs of $579/oz (as defined per World Gold Council guidelines, less corporate general and administration costs). The Company trades under the symbol “BSR” on the TSX Venture Exchange and “BBSRF” on the OTCQB.
On Behalf of Bluestone Resources Inc.
Jack Lundin | Chief Executive Officer & Director
For further information, please contact:
Bluestone Resources Inc.
Stephen Williams | VP Corporate Development & Investor Relations
Phone: +1 604 646 4534
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 release.
Forward Looking Statements
This press release contains “forward-looking information” within the meaning of Canadian securities legislation and “forward-looking statements” within the meaning of the United States Private Securities Litigation Reform Act of 1995 (collectively, “forward-looking statements”). All statements, other than statements of historical fact, that address activities, events or developments that Bluestone Resources Inc. (“Bluestone” or the “Company”) believes, expects or anticipates will or may occur in the future including, without limitation: to the market for Bluestone’s common shares, preferred shares, debt securities, subscription receipts, units, warrants and share purchase contracts; the conversion of the inferred mineral resources; increasing the amount of measured mineral and indicated mineral resources; the proposed timeline and benefits of further drilling; the proposed timeline and benefits of the Feasibility Study; statements about the Company’s plans for its mineral properties; Bluestone’s business strategy, plans and outlook; the future financial or operating performance of Bluestone; capital expenditures, corporate general and administration expenses and exploration and development expenses; expected working capital requirements; the future financial estimates of the Cerro Blanco Project economics, including estimates of capital costs of constructing mine facilities and bringing a mine into production and of sustaining capital costs, estimates of operating costs and total costs, net present value and economic returns; proposed production timelines and rates; funding availability; resource estimates; and future exploration and operating plans are forward-looking statements. These forward-looking statements reflect the current expectations or beliefs of the Company based on information currently available to Bluestone and often use words such as “expects”, “plans”, “anticipates”, “estimates”, “intends”, “may” or variations thereof or the negative of any of these terms.
All forward-looking statements are made based on Bluestone’s current beliefs as well as various assumptions made by Bluestone and information currently available to Bluestone. Generally, these assumptions include, among others: the presence of and continuity of metals at the Cerro Blanco Project at estimated grades; the availability of personnel, machinery, and equipment at estimated prices and within estimated delivery times; currency exchange rates; metals sales prices and exchange rates assumed; appropriate discount rates applied to the cash flows in economic analyses; tax rates and royalty rates applicable to the proposed mining operations; the availability of acceptable financing; the impact of the novel coronavirus (COVID-19); anticipated mining losses and dilution; success in realizing proposed operations; and anticipated timelines for community consultations and the impact of those consultations on the regulatory approval process.
Forward-looking statements are subject to a number of risks and uncertainties that may cause the actual results of Bluestone to differ materially from those discussed in the forward-looking statements and, even if such actual results are realized or substantially realized, there can be no assurance that they will have the expected consequences to, or effects on, Bluestone. Factors that could cause actual results or events to differ materially from current expectations include, among other things: risks and uncertainties related to expected production rates; timing and amount of production and total costs of production; risks and uncertainties related to the ability to obtain, amend, or maintain necessary licenses, permits, or surface rights; risks associated with technical difficulties in connection with mining development activities; risks and uncertainties related to the accuracy of mineral resource estimates and estimates of future production, future cash flow, total costs of production, and diminishing quantities or grades of mineral resources; risks associated with geopolitical uncertainty and political and economic instability in Guatemala; risks related to global epidemics or pandemics and other health crises, including the impact of the novel coronavirus (COVID-19); risks and uncertainties related to interruptions in production; the possibility that future exploration, development, or mining results will not be consistent with Bluestone’s expectations; uncertain political and economic environments and relationships with local communities and governmental authorities; risks relating to variations in the mineral content within the mineral identified as mineral resources from that predicted; variations in rates of recovery and extraction; developments in world metals markets; and risks related to fluctuations in currency exchange rates. For a further discussion of risks relevant to Bluestone, see “Risk Factors” in the Company’s annual information form for the year ended December 31, 2019, available on the Company’s SEDAR profile at www.sedar.com.
Any forward-looking statement speaks only as of the date on which it was made, and except as may be required by applicable securities laws, Bluestone disclaims any intent or obligation to update any forward-looking statement, whether as a result of new information, future events or results or otherwise. Although Bluestone believes that the assumptions inherent in the forward-looking statements are reasonable, forward-looking statements are not guarantees of future performance and accordingly undue reliance should not be put on such statements due to their inherent uncertainty. There can be no assurance that forward-looking statements will prove to be accurate, and actual results and future events could differ materially from those anticipated in such statements.
Non-IFRS Financial Performance Measures
The Company has included certain non-International Financial Reporting Standards (“IFRS”) measures in this news release. The Company believes that these measures, in addition to measures prepared in accordance with IFRS, provide investors an improved ability to evaluate the underlying performance of the Company and to compare it to information reported by other companies. The non-IFRS measures are intended to provide additional information and should not be considered in isolation or as a substitute for measures of performance prepared in accordance with IFRS. These measures do not have any standardized meaning prescribed under IFRS, and therefore may not be comparable to similar measures presented by other issuers.
All-in sustaining costs
The Company believes that all-in sustaining costs (“AISC”) more fully defines the total costs associated with producing gold.
The Company calculates AISC as the sum of refining costs, third party royalties, site operating costs, sustaining capital costs and closure capital costs all divided by the gold ounces sold to arrive at a per ounce amount. Other companies may calculate this measure differently as a result of differences in underlying principles and policies applied. Differences may also arise due to a different definition of sustaining versus non-sustaining capital.
AISC and costs are calculated based on the definitions published by the World Gold Council (“WGC”) (a market development organization for the gold industry comprised of and funded by 18 gold mining companies from around the world). The WGC is not a regulatory organization.