Tag Archives: San Sebastian

New Major Drilling rod handling rigs start turning at Hecla’s San Sebastian mine

Two new Major Drilling EF-75 drills have arrived and are now turning at Hecla Mining’s San Sebastian mine in Durango, Mexico, the drilling services company says.

The drills arrived in March and are part of Major Drilling’s fleet improvements, adding innovative rod handling capability to the project, it said.

“We are thankful that we are partnered with a company like Major Drilling that can provide newer, innovative drills,” Stephen Redak, Exploration Manager Mexico, Hecla Mining, said.

Hecla’s San Sebastian property is a silver and gold mine, where exploration work is underway in two main veins. Using these new drills at the San Sebastian project enhances Major Drilling’s 12-year history with Hecla in Mexico. This has seen more than 354,000 m drilled since 2009.

Major Drilling’s EF-75 core drill is new equipment for the Mexico branch. It combines safety with a high level of productivity, according to the company.

With the rod manipulator, operators benefit from rod handling, horizontal stacking and a safety screen to protect them while lifting and lowering rods. The rig is capable of depths of up to 2,700 m.

Workers are protected by rod handling innovation, and they improve results using a unique mast designed for accurate core orientation, the company says.

David Boucher, Major Drilling Mexico General Manager, said: “Hecla has been a long-time client of ours in Mexico, and we are very excited to bring these new drills out in Durango to really see what they can do at San Sebastian. We are very happy to have this equipment turning in Mexico.”

Major Drilling’s USA Division previously partnered with Hecla at the Fire Creek Mine in Nevada (now under care and maintenance). The company’s exploration teams have also drilled at Hecla surface exploration projects in other locations in the western USA.

Hecla testing out XRF ore sorting at San Sebastian silver-gold mine in Mexico

Hecla Mining is carrying out ore sorting proof of concept work at its San Sebastian silver-gold mine in Durango, Mexico, CEO Phil Baker told attendees at the Mines and Technology conference this week.

Baker said an algorithm based on X-ray Fluorescence (XRF) technology was determining whether the rock coming through from the mine was ore or waste.

San Sebastian, which produced 3.3 Moz of silver and 25,177 oz of gold last year, recently moved over to underground operations after open-pit mining concluded at the end of 2017. In 2018, it is expected to produce 2-2.2 Moz of silver at a cash cost, after by-product credits, of $9.50/oz, while gold production is expected to come in at 15,000-16,000 oz.

The company’s concession holdings in Durango are in the middle of the prolific Mexican Silver Belt and cover approximately 42,000 ha. Mineralisation in the district is structurally controlled and hosted in sedimentary rocks, with many companies in the region mining high-grade veins.

Hecla is weighing up whether to start mining sulphide ore at the deposit, which could potentially extend the mine’s life by some five years.

While Baker said test work on XRF ore sorting at San Sebastian was ongoing, he did see potential for the technology being applied across the mining sector.

“The real issue with ore sorting is: what is your recovery going to be? How much are you going to lose? And, we’re still working through that (at San Sebastian). But I have high hopes for this being a complete gamechanger for the industry,” he said at the event in London.

“The cost of sorting is quite low. If you’re able to get a high enough recovery, then you can afford to do more productive methods of mining for small tonnage operations. It could completely change how you go about mining.”

Last month, Agnico Eagle Mines said it was in the process of installing an ore sorting pilot plant at its Pinos Altos gold-silver operation, also in Mexico.