Project Overview
Peñasquito is Mexico's largest gold mine, second largest silver mine and one of the country's largest producers of zinc and lead. Located approximately 780 kilometres northwest of Mexico City, the site consists of two sulphide processing lines and a high-pressure grinding roll circuit with a combined capacity of 110,000 tonnes per day. The sulphide ore is processed through a conventional crushing, milling and flotation facility that produces zinc and lead concentrates.
Two diatreme pipes, Peñasco and Brecha Azul, are the principal hosts for gold-silver-zinc-lead mineralization at Peñasquito. The pipes flare upward and are filled with breccia clasts in a milled matrix of similar lithological composition. The diatremes are surrounded by coalesced halos of lower grade, disseminated sphalerite, galena, and sulphosalts containing gold and silver. Garnet skarn hosted polymetallic mineralization has been identified at depth between the Peñasco and Brecha Azul diatremes. The skarn has horizontal dimensions of approximately 1,000 metres by 1,200 metres and is open at depth.
Peñasquito consists of the Peñasco and Chile Colorado open pit mines, the surface rights in the vicinity of which are held by three ejidos: Ejido Cedros, Ejido Mazapil and Ejido Cerro Gordo. Peñasquito has signed land use agreements with each ejidos, valid through 2035 and 2036, and the relevant private owners.
Stream Details
| Date of Contract |
24-Jul-07 |
| Term |
Life of Mine |
| Stream |
25% of silver |
| Upfront Consideration |
$485M |
| Per Unit Production Payment |
$4.43 (annual inflation adjustment based on CPI) |
| Cost Quartile |
First |
For more information on the Peñasquito mine, please visit: www.newmont.com (opens in new tab)