EMERALD ISLE MINE

Cu
3.22
USD/lb
-0.37
red
Data as of Jul 30, 2014 12:00AM UTC


Key Facts
Status: Past Producer
Type of Work: Open-Pit
Location: Arizona, United States
                 25 km NW of Kingman

Commodities: Copper
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Latest Information
August 6, 2004
Scoping study to provide detailed estimates of the capital cost to place the mine back to production. The property was discovered to contain significant quatities of zinc.
May 31, 2003
A total of 134 holes, comprised of both reverse circulation and core holes totalling 27,624 feet of drilling, have been completed on the Emerald Isle property, of which 45 in-fill holes, totalling 8,755 feet, were completed during 1992-93 on spacing adequate to support the development of mine models. In 1994, construction of a solvent extraction and electro-winning (SX/EW) plant designed to produce 8,000 pounds per day of 99.99% pure copper was completed on site. The plant and the surface mine were operated until December 1995 when, due to weak copper prices, they were placed on standby to conserve the resource. Approximately 235,000 pounds of cathode copper was produced during this period. The plant has remained on care and maintenance since that time.
February 29, 1996
Based on all drilling and data from prior operations, Arimetco completed an internal evaluation of the Emerald Isle property that included detailed mine plans, bench plans and mining schedules, as determined using the MEDSYSTEM mine planning software, and a re-start schedule complete with cost estimates for placing the mine and plant back into operation. In an internal report resulting from this work, it was calculated that the main deposit hosts approximately one million tons of oxidized copper mineralization grading 0.55% copper. As all equipment necessary to expand the SXEW plant capacity to 12,000 pounds per day had previously been purchased and is on site and as the plant has been on care and maintenance since 1995 (and continues to be), the Arimetco report estimated that it could be put back into operation within four to six months from the time a decision is made to do so, assuming availability of funds. An independent assessment will need to be carried out to determine whether this time frame is still applicable.

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