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Arizona Mining Completes Metallurgical Study at Hermosa Project, Arizona

Published: January 11, 2016 |

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Arizona Mining Inc. has completed a scoping level metallurgical study on the lead (Pb), zinc (Zn) and silver (Ag) mineralization at its advanced exploration Hermosa project. The study projects overall recoveries of 92.9 percent Pb; 85.5 percent Zn and 91 percent Ag using industry standard froth flotation processing techniques. The study was completed by Resource Development Inc. located in Wheat Ridge, Colorado.

“Completing the preliminary metallurgy work was an important step in de-risking the Hermosa project. The scoping level studies clearly indicate very high recoveries of lead, zinc and silver using traditional, low cost techniques. Analysis of the concentrates produced show very low levels of any deleterious elements in the concentrates, indicating the processed mineralization will yield high quality lead and zinc concentrates that will be very attractive to the industry,” said Arizona Mining COO Don Taylor.

“As testing progresses we will focus on improving recoveries, concentrate grades and finding the most effective option to produce a copper concentrate,” added Taylor.

STUDY HIGHLIGHTS

• A composite sample representative of the mineralization drilled to-date was prepared from split core samples which were projected to have the average grade of the deposit. The composite assayed 9.14 percent Pb, 7.99 percent Zn, 126 g/t Ag, 0.243 percent Cu and 0.285 g/t Au; the composite sample grade is higher than the projected grade of ±five percent Pb and ± Zn

• The concentrates produced from the mineralization contained no deleterious elements and should not pose an issue for concentrate sales or the smelting of the concentrates

• The composite sample had a Bond’s mill work index of 14.03 kwh/st

• Conventional differential lead-zinc process worksheet using industry accepted reagents and one to two stages of cleaner flotation for each lead and zinc flotation produced marketable-grade lead and zinc concentrates

• The lead rougher concentrate recovered 97.1 percent Pb, 81.4 percent Ag, 12.8 percent Zn and 27.7 percent Cu in 15.8 percent of the weight; the concentrate assayed 51.7 percent Pb, 6.41 percent Zn, 632 g/t Ag and 0.51 percent Cu

• The zinc rougher concentrate recovered 83.2 percent Zn, 1.5 percent Pb, 15.8 percent Ag and 68 percent Cu in 20 percent of the weight; the concentrate assayed 33 percent Zn, 0.65 percent Pb, 96.8 g/t and Ag1.0 percent Cu

• The copper grade of the composited sample was too low to produce a marketable-grade copper concentrate; this will be evaluated further in the next phase of testing

• The second cleaner lead concentrate assayed 75.1 percent Pb, 1.13 percent Zn, 804 g/t Ag and 0.32 percent Cu; the concentrate had no deleterious elements

• The second cleaner zinc concentrate assayed 56.3 percent Zn, 0.31 percent Pb, 144 g/t Ag and 1.28 percent Cu; the concentrate had no deleterious elements


About Arizona Mining
Arizona Mining Inc. is a Canadian mineral exploration and development company focused on the development of its 80 percent owned Hermosa property located in Santa Cruz County, Arizona. The Hermosa project, a lead-zinc-silver carbonate replacement zone mineral exploration project, has a resource calculated in accordance with NI 43-101 and is being drilled to test the limits of that resource. The company released the results of the first seven holes of the current drill program that showed high grade lead, zinc and silver intercepts over significant thicknesses. In addition to the metallurgical work just completed, the company will be completing an updated resource estimate based on the drill results to date. The company’s other project on the Hermosa property is a silver-manganese manto oxide development project that has a prefeasibility study completed in December 2013.

To stop by Arizona’s website, CLICK HERE


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