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Excelsior preparing for Gunnison well stimulation pilot

Excelsior Mining hopes to be able to start a pilot test of a well stimulation process at its Gunnison in-situ leach copper project in Arizona, US.

Excelsior preparing for Gunnison well stimulation pilot Excelsior preparing for Gunnison well stimulation pilot Excelsior preparing for Gunnison well stimulation pilot Excelsior preparing for Gunnison well stimulation pilot Excelsior preparing for Gunnison well stimulation pilot

Excelsior Mining's Gunnison in Arizona

This, it hopes, will resolve the issue of carbon dioxide bubbles blocking the flow of leach solution underground, chief executive Stephen Twyerould told Mining Journal.

The US$1.