A 100% controlled silver lead zinc project approximately 140 kilometres north of Lima, with historical workings, silver rich stockpiles and a processing pathway to Aguila Norte.
100%Controlled by Peruvian Metals, acquired 2021
~94 haApproximately 140 km north of Lima
12.93 oz/t AgAverage silver value across 10 stockpile samples
85.50% AgRecovery in preliminary metallurgical work
84.37% PbLead recovery in preliminary metallurgical work
150.34 oz/t AgConcentrate grade from preliminary testing
Location
North of Lima, with a paved route to the plant
Minas Visca
Approximately 140 km north of Lima, 100% controlled by Peruvian Metals
Access
Paved highway from Lima plus approximately 50 km of well maintained dirt road
Property size
Approximately 94 hectares
Geological setting
Tertiary volcanics of the Calipuy Formation
Processing pathway
Material can be shipped to Aguila Norte, mainly by paved highway
Acquired
2021, by superior offer in a closed bid auction at the Peruvian Public Registry of Mining
Map shows the Aguila Norte plant and the Company’s Palta Dorada, Mercedes and Minas Visca projects. Minas Yanayco is not shown.
Project overview and snapshot
A silver rich polymetallic project with historical workings
Minas Visca is a silver lead zinc project located approximately 140 kilometres north of Lima, Peru. The property covers approximately 94 hectares and includes several old mine workings.
Peruvian Metals acquired Minas Visca in 2021 by submitting a superior offer in a closed bid auction at the Peruvian Public Registry of Mining. Other bidders for the property included Newmont Peru S.R.L. and Mitsui Mining & Smelting Co. The property is road accessible from Lima by paved highway and approximately 50 kilometres of well maintained dirt road, and mineralized material can be shipped to the Company’s Aguila Norte processing plant mainly by paved highway.
Minas Visca at a glance
Ownership
100% controlled by Peruvian Metals, acquired 2021
Commodity focus
Silver, lead and zinc, with minor gold credits
Mineralization style
Intermediate sulphidation polymetallic veins
Location
Approximately 140 km north of Lima, Peru
Property size
Approximately 94 hectares
Access
Paved highway from Lima plus approximately 50 km of well maintained dirt road
Geological setting
Tertiary volcanics of the Calipuy Formation
Vein orientation
Numerous polymetallic veins generally trending east to west
Historical workings
Old mine workings from the late 1960s and early 1970s
Processing pathway
Material can be shipped to Aguila Norte, mainly by paved highway
Sampling
Stockpile sampling returned silver, lead and zinc values
Company geologists mapped and sampled the workings and stockpiles left by previous operators. Ten samples were taken from old stockpiles across four different areas.
Sample set
Range and average
10 samples, old stockpiles in four areas
Range of 0.06 to 1.24 g/t Au, 0.71 to 47.82 oz/t Ag, 0.34% to 9.25% Pb and 0.13% to 4.93% Zn. Average of 0.49 g/t Au, 12.93 oz/t Ag, 2.62% Pb and 1.68% Zn.
Stockpile samples are selective by nature and are not necessarily representative of mineralization across the property. Further systematic mapping, sampling and metallurgical testing are required.
Metallurgy
Preliminary testing produced a silver lead concentrate
The Company collected one bulk sample from remaining surface material and completed preliminary metallurgical work on this lower grade material.
Sample
Head grade, recovery and concentrate
Lower grade bulk sample from remaining surface material
Head grade 4.83 oz/t Ag, 0.25 g/t Au and 1.62% Pb. Recoveries of 85.50% Ag, 84.37% Pb and 46.33% Au. Concentrate assaying 150.34 oz/t Ag, 42.12% Pb and 2.59 g/t Au.
The Company has stated that higher grade material would improve recoveries and concentrate grade, and that even with lower grade silver material a commercially viable metal concentrate can be produced. That statement is the Company’s own assessment from preliminary metallurgical work and is not based on a mineral resource estimate or an economic study.
Metallurgical work was performed by Ing. Jose Orlando Moncada Rejas, principal metallurgist at the Aguila Norte plant. Assaying was performed by Procesmin Ingenieros SRL of Caraz, Ancash, by fire assay for gold and silver.
The flotation circuit at the Company’s Aguila Norte processing plant. Preliminary metallurgical work on Minas Visca material was carried out by the plant’s principal metallurgist.
Historical context
Historical mining and metallurgy, unverified
Historical reports from Banco Minero del Peru note that a metallurgical sample taken from the workings averaged 13.16 oz/t Ag with 2.55% Pb and 3.77% Zn. Historical metallurgical testing reportedly produced two concentrates, the first averaging 63.03% Pb, 6% Zn and 317 oz/t Ag, and the second averaging 61.9% Zn and 7.2% Pb.
These historical results are historic and cannot be verified. They are presented as historical exploration context only, are not necessarily representative of current mineralization on the property, and should not be relied upon.
Regional position and next steps
Advancing toward mapping, sampling and adit evaluation
Peruvian Metals acquired the key part of the mineralized system at Minas Visca. Mitsui Mining & Smelting Co. surrounds the concession to the north, east and south. The Company has reported that it was informed by the local community that Mitsui is planning a drill program next to the property, and that Mitsui has completed community consultations and workshops and received approvals to commence drilling once permits are approved.
Adjacent property note. The information above concerns a property adjacent to Minas Visca that Peruvian Metals has no interest in. Activity or mineralization on an adjacent property is not necessarily indicative of mineralization on the Company’s property. The information regarding Mitsui’s plans is second hand, has not been verified by the Company, and should not be relied upon.
The Company has reported that initial discussions with the local community have been positive and intends to continue those discussions to support the next phase of work. Planned work is expected to include detailed mapping and sampling, additional metallurgical samples, and evaluation of the condition of underground adits for permitting purposes.
Community continued engagement with the local community
Mapping detailed geological mapping and systematic sampling of workings and stockpiles
Metallurgy additional metallurgical testing
Permitting evaluation of underground adits and assessment of permitting requirements
Gallery
Project images
Regional setting, Peru.The Aguila Norte processing plant, reached from Minas Visca mainly by paved highway.Project locations in Peru. Minas Yanayco is not shown.
Technical disclosureScientific and technical information relating to Minas Visca has been reviewed and approved by Jeffrey Reeder, P.Geo., Chairman, CEO and Director of Peruvian Metals Corp., who is a Qualified Person as defined under National Instrument 43-101. The Company’s mineral properties are exploration and development stage projects. Historical results, stockpile samples, bulk samples, metallurgical samples and historical metallurgical reports may not be representative of mineralization across the property. Certain historical results cannot be verified. The project is not the subject of a mineral resource estimate. Readers should review the Company’s full technical disclosure and public filings on SEDAR+ for additional information. Information presented on this page is drawn from the Company’s public disclosure, which is available on SEDAR+.
