Gold and Silver Updates


OTTAWA, Jan. 20, 2021 (GLOBE NEWSWIRE) — Cornerstone Capital Assets Inc. (“Cornerstone” or “the Firm”) (TSXV-CGP) (F-GWN) (B-GWN) (OTC-CTNXF) is happy to supply an replace on its Bramaderos gold and copper three way partnership in southern Ecuador wherein it has a 12.5% curiosity carried by JV companion and mission operator Sunstone Metals Inc. (ASX: STM) by means of to the beginning of business manufacturing (see “About Bramaderos”, beneath).

Figures associated to this information launch might be seen in PDF format by accessing the model of this launch on the Firm’s web site ( or by clicking on the hyperlink beneath:


  • Drilling at Espiritu has intersected extra high-grade silver with gold, zinc and lead inside a polymetallic epithermal system.
  • Drill gap ESDD006 intersected 5 vital lodes of silver-gold-zinc-lead mineralization, together with:

    ◦ 102.25m to 106m; 3.75m at 11.77g/t silver, 1.54g/t gold◦ 172.75m to 173.15m; 0.4m at 355g/t silver, 0.36g/t gold, 3.55% zinc◦ 206.15m to 206.65m; 0.5m at 187g/t silver, 1.44g/t gold◦ 277.5m to 278.0m; 0.5m at 550g/t silver, 0.26g/t gold◦ 313.0m to 313.5m; 0.5 at 93g/t silver, 0.68g/t gold, 2.45% zinc
  • Gap ESDD008 was simply accomplished at 359.97m, intersecting altered and silver-lead-zinc bearing zones, including vital scale to the system with a strike extent now of over 200m. Gap ESD009 commenced.
  • A considerably bigger system at Espiritu is rising based mostly on mapping, soil sampling, interpretation of geophysics, and ongoing drilling. Slender high-grade zones and intervening decrease grade zones might be bulked and description bigger mineralized our bodies.
  • Drilling on the Brama gold-copper porphyry goal is anticipated to begin the primary week of February. The drill gap is focusing on a magnetic anomaly beneath a mineralized breccia interpreted to characterize a ‘pencil porphyry’ gold-copper goal.


Assay outcomes and geological interpretation from gap ESDD006 present a number of silver-gold bearing buildings with varied orientations (Desk 1, Figures 1, 2, 3).

Drilling of gap ESDD008 has been accomplished at 359.97m and has intersected altered and mineralized intervals that point out growing confidence within the interpreted geometry and that the Espiritu discovery has the potential to be a big system with presently over 200m of strike containing native bonanza grades. On a gold or silver-equivalent foundation, the intersections reported are vital.

Drill gap ESDD009 has been commenced and is focusing on an space 250 south of ESDD008 (Determine 1).

Drilling so far has solely examined to a depth of ~250m beneath floor in two places at Espiritu. Proof of a number of lodes means there are a number of alternatives to follow-up bonanza grades throughout the realm drilled so far. Slender high-grade zones and intervening decrease grade zones might be bulked and description bigger mineralized our bodies (Desk 1). Each ideas are being explored – excessive grade slender veins and bigger decrease grade programs.

Cornerstone Vice President Exploration, Yvan Crepeau, mentioned:

“We’re very inspired by the outcomes coming from Espiritu. The important thing take-aways listed below are that the system has the potential to ship bonanza grades, it’s prone to have vital scale based mostly on the floor sampling, the vein orientations could also be advanced however with every drill gap a extra strong mannequin is being developed, and with on-going drilling Espiritu might current an early improvement alternative whereas the seek for massive porphyry gold-copper programs continues at Brama, Limon and different targets.

Ongoing mapping and soil sampling are defining a big system doubtlessly as much as 1.2km x 800m and genetically associated to the Brama porphyry system. This geological situation is no surprise and vital examples might be discovered all through Central and South America. Ongoing exploration is defining drill targets inside this space and specializing in potential bonanza grade structural intersections, along with broader decrease grade composite intervals with the potential for bigger near-surface mineralized our bodies.”

Desk 1: Particulars of assay outcomes from gap ESDD006 (see Desk 2 in Figures for drill gap places):

  From (m) To (m) Interval (m) Au (g/t) Ag (g/t) Pb (%) Zn (%)
  16.10 26.30 10.20 0.17 13.1   0.22
  36.50 66.05 29.55 0.18 18.6    
  89.70 90.85 1.15 0.18 16.7    
  95.75 97.75 2.00 0.25 23.5    
contains 96.75 97.25 0.50 0.71 64.7   0.29
  102.25 106.00 3.75 1.54 11.8    
contains 104.00 106.00 2.00 2.80 6.7    
  136.00 143.00 7.00 0.15 15.3    
  171.50 173.65 2.15 0.18 88.3    
contains 172.75 173.15 0.40 0.36 355.0 0.76 3.55
  176.50 178.00 1.50 0.32 125.3    
contains 176.50 177.50 1.00 0.38 182.1 0.42 1.23
  187.00 190.10 3.10 0.16 6.8   0.13
  195.25 196.25 1.00 0.11 13.7    
  202.30 206.65 4.35 0.27 41.5    
contains 206.15 206.65 0.50 1.44 187.0 0.27 0.71
  223.60 224.00 0.40 1.11 4.5    
  224.40 224.70 0.30 0.35 54.1 0.43 4.65
  276.00 278.50 2.50 0.19 142.5   0.39
contains 277.50 278.00 0.50 0.26 550.0 0.37 0.64
  281.50 282.00 0.50 0.06 19.0   0.42
  283.50 284.00 0.50 0.11 12.6 0.24  
  305.00 316.00 11.00 0.14 17.2 0.11 0.23
contains 305.00 307.90 2.90 0.22 10.4 0.12 0.24
contains 306.90 307.40 0.50 0.63 26.6 0.28 0.56
  311.50 316.00 4.50 0.17 32.6 0.19 0.36
contains 313.00 313.50 0.50 0.68 93.0 0.80 2.45
contains 315.00 316.00 1.00 0.04 74.4    
  372.00 374.00 2.00 0.12 8.8    
  400.00 401.14 1.14 0.07 11.3    

Porphyry Drilling at Brama goal

Drilling of the Brama porphyry gold-copper system is anticipated to begin in early February 2021. The goal at Brama is a ‘pencil porphyry’ as interpreted from 3-D modelling of magnetics knowledge (Figures 4 and 5). The drill gap will check beneath a well-mineralized potassic altered excessive degree intrusive breccia zone of the Brama porphyry intersected in earlier drilling and returning 98m at 0.61g/t gold and 0.11% copper in BMDD005 and 103.6m at 0.56g/t gold and 0.13% copper in CURI 13.

The drill gap will probably be drilled to 900-1000m and is anticipated to be accomplished in early March.

About Bramaderos

Measuring 4,948 hectares, the Bramaderos mission is positioned roughly 130km from the Loja provincial capital in southern Ecuador. The mission is well accessible through the Pan American Freeway that crosses the property.

The Bramaderos concession is owned by La Plata Minerales S.A. (“PLAMIN”), which in flip is owned 87.5% by Sunstone (the mission operator) and 12.5% by Cornerstone. Cornerstone’s 12.5% curiosity is carried by Sunstone by means of to the beginning of business manufacturing and repayable at Libor plus 2% out of 90% of Cornerstone’s share of earnings or dividends from the Bramaderos mission (see information launch 20-01 dated January 7, 2020).

Extra details about the property might be discovered at

Certified Individual:

Yvan Crepeau, MBA, P.Geo., Cornerstone’s Vice President, Exploration and a certified particular person in accordance with Nationwide Instrument 43-101, is chargeable for supervising the exploration program on the Bramaderos mission for Cornerstone and has reviewed and authorized the data contained on this information launch.

Sampling and assaying

PLAMIN makes use of a fireplace assay gold approach for Au assays (FAS-111) and a 4 acid multi ingredient approach (IMS-230) for a collection of 48 parts. FAS-111 entails Au by Hearth Assay on a 30-gram aliquot, fusion and atomic absorption spectroscopy (AAS) at hint ranges. IMS-20 is taken into account a close to complete 4 acid approach utilizing a 20g aliquot adopted by multi-element evaluation by ICP-AES/MS at ultra-trace ranges. This evaluation approach is taken into account appropriate for this type of mineralization.

Requirements, blanks and duplicates are inserted ~1/28 samples. The values of the requirements vary from low to excessive grade and are thought of applicable to observe efficiency of values close to cut-off and close to the imply grade of the deposit. The examine sampling outcomes are monitored and efficiency points are communicated to the laboratory if crucial.

Pattern safety was managed by means of sealed particular person samples and sealed baggage of a number of samples for safe supply to the laboratory by everlasting workers of the three way partnership. MS Analytical is an internationally accredited laboratory that has all its inside procedures closely scrutinized in an effort to keep their accreditation. MS Analytical is accredited to ISO/IEC 17025 2005 Accredited Strategies.

PLAMIN’s sampling methods and knowledge have been audited a number of occasions by unbiased mining consultants throughout varied mission assessments. These audits have concluded that the sampling methods and knowledge administration are to business requirements. All historic knowledge has been validated to one of the best diploma attainable and migrated right into a database.

Rock samples are collected by PLAMIN’s personnel, positioned in plastic baggage, labeled and sealed, and saved in a safe place till supply by PLAMIN staff to the LAC y Asociados ISO 9001-2008 licensed pattern preparation facility in Cuenca, Ecuador.

Rock samples are ready crushing to 70% passing 2 mm (10 mesh), splitting 250 g and pulverizing to 85% passing 75 microns (200 mesh) (MSA code PRP-910). Ready samples are then shipped to MS Analytical Companies (MSA), an ISO 9001-2008 laboratory in Langley, BC, Canada, the place samples are assayed for a multi-element suite (MSA code IMS-136, 15.0 g cut up, Aqua Regia digestion, ICP-AES/MS end) and gold by Hearth Assay (MSA code FAS-111, 30 g fusion, AAS end). Over restrict outcomes for Cu (>1%) are systematically re-assayed (MSA code ICF-6Cu, 0.2 g, 4-acid digestion, ICP-AES end). Gold is assayed utilizing a 30 g cut up, Hearth Assay (FA) and AAS end (MSA code FAS 111). Over restrict outcomes for Au (>10 g/t) are systematically re-assayed (MSA code FAS-415, FA, 30g., gravimetric end).

Soil samples are dried at low temperature, screened to 80 mesh (MSA code PRP-757); a 15 grams portion is then assayed for a multi-elements suite (MSA code IMS-136, Aqua Regia digestion, ICP-AES/MS end).

High quality assurance / High quality management (QA/QC)

The MSA Analytical Laboratory is a certified assayer that performs and makes accessible inside assaying controls. Duplicates, licensed blanks and requirements are systematically used (1 management pattern each 20-25 samples) as a part of PLAMIN’s QA/QC program. Rejects, a 100 g pulp for every rock pattern, are saved for future use and controls.

About Cornerstone

Cornerstone Capital Assets Inc. is a mineral exploration firm with a diversified portfolio of tasks in Ecuador and Chile, together with the Cascabel gold-enriched copper porphyry three way partnership in northwest Ecuador. Cornerstone has a 21.4% direct and oblique curiosity in Cascabel comprised of (i) a direct 15% curiosity within the mission financed by means of to completion of a feasibility examine and repayable at Libor plus 2% out of 90% of its share of the earnings or dividends from an operation at Cascabel, plus (ii) an oblique curiosity comprised of seven.5% of the shares of three way partnership companion and mission operator SolGold Plc. Exploraciones Novomining S.A. (“ENSA”), an Ecuadoran firm owned by SolGold and Cornerstone, holds 100% of the Cascabel concession. Topic to the satisfaction of sure circumstances, together with SolGold’s absolutely funding the mission by means of to feasibility, SolGold Plc will personal 85% of the fairness of ENSA and Cornerstone will personal the remaining 15% of ENSA.

Additional data is on the market on Cornerstone’s web site: and on Twitter. For investor, company or media inquiries, please contact:

Investor Relations:
Mario Drolet; E-mail:; Tel. (514) 904-1333

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Cautionary Discover:
This information launch might include ‘Ahead-Trying Statements’ that contain dangers and uncertainties, equivalent to statements of Cornerstone’s beliefs, plans, targets, methods, intentions and expectations. The phrases “potential,” “anticipate,” “forecast,” “consider,” “estimate,” “intend”, “developments”, “point out”, “count on,” “might,” “ought to,” “might”, “mission,” “plan,” or the damaging or different variations of those phrases and comparable expressions are supposed to be among the many statements that establish ‘Ahead-Trying Statements.’ Though Cornerstone believes that its expectations mirrored in these ‘Ahead-Trying Statements’ are affordable, such statements might contain unknown dangers, uncertainties and different components disclosed in our regulatory filings, considered on the SEDAR web site at For us, uncertainties come up from the behaviour of monetary and metals markets, predicting pure geological phenomena and from quite a few different issues of nationwide, regional, and international scale, together with these of an environmental, climatic, pure, political, financial, enterprise, aggressive, or regulatory nature. These uncertainties might trigger our precise future outcomes to be materially completely different than these expressed in our Ahead-Trying Statements. Though Cornerstone believes the details and data contained on this information launch to be as right and present as attainable, Cornerstone doesn’t warrant or make any illustration as to the accuracy, validity or completeness of any details or data contained herein and these statements shouldn’t be relied upon as representing its views after the date of this information launch. Whereas Cornerstone anticipates that subsequent occasions might trigger its views to vary, it expressly disclaims any obligation to replace the Ahead-Trying Statements contained herein besides the place outcomes have different materially from the unique statements.

On Behalf of the Board,
Brooke Macdonald
President and CEO

Neither TSX Enterprise Trade nor its Regulation Companies Supplier (as that time period is outlined within the insurance policies of the TSX Enterprise Trade) accepts accountability for the adequacy or accuracy of this launch.


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