Donnerstag, 21. Mai 2015

Excelsior Mining: Metallurgische Resultate bestätigen Weltklasse PFS-Daten für Gunnison-Projekt in Arizona

Die jüngsten Resultate zu den metallurgischen Tests können sich sehen lassen. Excelsior Mining (TSX-V:MIN) bleibt mit den Entwicklungs-Programmen für die finale Machbarkeits-Studie auf Gunnison auf Kurs. In den nächsten Wochen werden weitere, sehr relevante Neuigkeiten anstehen..

Excelsior’s Preliminary Metallurgical Tests Fully Consistent with Prefeasibility Results

May 20, 2015   
Excelsior Mining Corp. (TSX-V: MIN) (Frankfurt: 3XS) (OTCQX: EXMGF) ("Excelsior" or the “Company”) is pleased to announce interim results from ten “fracture simulation” leach tests at the Gunnison Copper Project in Arizona.

The tests demonstrate copper recovery from the fractured rocks occurs rapidly and relatively uniformly across all rock types. The tests have also allowed for detailed and quantitative acid consumption measurements. To date, the results of recovery and acid consumption are entirely consistent with the metallurgical parameters used in the 2014 Prefeasibility Study (PFS).

On September 15, 2014, Excelsior announced that it had commenced a metallurgical drilling and testing program at the Gunnison Copper Project. The drilling program consisted of ten (10) diamond-drill holes totalling 5,899 feet (11,306 feet in total drilling). The drilling program generated new samples, representing a variety of structures and rock types, which were then submitted for extensive metallurgical testing. The results of the metallurgical tests will be used to determine copper extraction rates, acid consumption rates, and rinsing procedures and rates. Results will be used for both the permit application process and the Feasibility Study.

A total of ten “fracture simulation” leach tests have been ongoing as part of the metallurgical program. Fracture simulation boxes #1 and #2 have been completed after 199 and 166 days of respective leaching. Box #3 is still leaching after 170 days and the remaining seven boxes have been leaching for approximately 80 days. Highlights of the preliminary results are set out in Table 1 below.

Commenting on these results, Stephen Twyerould, President and C.E.O. said, “The fracture simulation boxes offer us the best lab-scale testing of expected underground leach conditions to date. We are pleased to see that across all rock types, these initial results mirror the industry-leading outcomes from our 2014 Prefeasibility Study in terms of acid consumption and copper recoveries. Once again, Excelsior has returned results that highlight the viability of an in-situ recovery operation at Gunnison.”

Final metallurgical test results are expected to be released in July, 2015. In addition, Excelsior has also been undertaking a hydrology program that involved drilling 26 hydrological test wells. Extensive geophysical logging and pump testing is currently being conducted on these holes to define the hydrological properties that control fluid movement through the naturally fractured, mineralized, bedrock. The results of the hydrological program are also expected to be available in July 2015...

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Excelsior Mining: Jüngste Kursrally nur der Anfang - Viele relevante News für Gunnison im 2. Quartal 2015 erwartet

Excelsior Mining (TSX-V:MIN) hat auf dem Hauptprojekt Gunnison in Arizona das Potential, die profitabelste Kupfermine in Nordamerika in den nächsten Jahren aufzubauen. In den nächsten Wochen werden zahlreiche relevante News erwartet..

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