Metallurgical Testwork achieves > 85% gold restoration by way of a mix of gravity focus adopted by flotation of gravity tails.Faina Measured and Indicated Mineral Sources complete 261,000 t at a grade of 6.87 g/t Au, containing 58,000 ozAu.Faina Inferred Mineral Sources complete 1.5 million tonnes (Mt) at a grade of seven.26 g/t Au, containing 360,000 ozAu.
TORONTO, ON / ACCESSWIRE / September 7, 2021 / Jaguar Mining Inc. (“Jaguar” or the “Firm”) (TSX:JAG) is happy to announce that it’s progressing conceptual mining research and plans to advance its high-grade Faina mineral useful resource following optimistic metallurgical testwork outcomes. The Faina venture is situated 500m northwest on strike from its working Turmalina Gold Mine and Mill Complicated, in Minas Gerais, Brasil.
Faina measured and indicated mineral sources (“MRMR”) as of December 31, 2019 (confer with press launch dated twentieth April, 2020), totalled 261,000 tonnes at a grade of 6.87 g/t Au, containing 58,000 ozAu And Inferred Mineral Sources totalled 1.5 million tonnes (Mt) at a grade of seven.26 g/t ozAu, containing 360,000 ozAu*.
* 1. Mineral Sources have been estimated at a cut-off grade of three.8 g/t Au. 2. Mineral Sources are estimated utilizing a long-term gold value of US$1,400/oz. Au. 3. Mineral Sources are estimated utilizing a mean long-term international change charge of R$2.5: US$1. 4. No Mineral Reserves at present exist for Faina.
The shallow oxide portion of the Faina deposit was beforehand mined by way of an open pit from 1992 to 1993 and processed by heap leaching, however because of the refractory nature of the sulphide mineralization beneath the oxides, this portion of the mineralization stays to be exploited. The Faina mineral useful resource stays open with exploration potential alongside strike and lengthening to depth.
Outcomes from not too long ago accomplished preliminary metallurgical testwork on Faina sulphide samples chosen from a number of massive – diameter (PQ) diamond drill holes demonstrated that metallurgical recoveries > 85% are reported from a mix of gravity focus adopted by flotation of gravity tails.
The above outcomes will inform conceptual mine research and plans supported by fashionable advances in metallurgical processes for extraction of gold from refractory ores. Importantly, the research will incorporate the viability of including to the manufacturing profile and lifetime of the close by Turmalina Mine by accessing the deposit north-west from at present lively mining areas and the utilization of accessible extra crushing and milling capability.
Simultaneous with the research, Jaguar is at present engaged in knowledge assortment and evaluation required for the estimation of mineral reserves for Faina, together with useful resource drilling, geotechnical investigations, evaluation of mining situations, and extra complete metallurgical check work.
Vern Baker, CEO, Jaguar Mining commented: “Faina is the primary venture shifting from our exploration workforce into a possible development venture. Jaguar is targeted on constructing distinctive worth by means of development that makes use of our present capital base, land place, and efficient workforce. There’s lower than a kilometre between the Faina useful resource and lively workings at Turmalina, permitting the Faina useful resource to suit completely into our development idea. We count on to have the ability to leverage our underground infrastructure in addition to our under-utilized plant by including the Faina useful resource into the Turmalina Mine. Faina will in all probability be accessed from present improvement headings being accomplished to entry and develop the CNW sources within the higher ranges of Turmalina. We consider we are able to proceed to develop the Faina useful resource in addition to improve inferred sources to measured and indicated with extra drilling. Our present conceptual examine is focused at figuring out our handiest actions to mix Faina useful resource into the Turmalina Life-of-Mine plan. Faina can contribute to our firm in a short time as it’s situated inside our present mining permits and can make the most of present infrastructure.”
Determine 1. Location map displaying the placement of the Faina relative to Jaguar’s Operations throughout the Iron Quadrangle, Minas Gerais, Brazil
Key observations from preliminary metallurgical testwork are summarized as follows:
Two composite samples, SF1 and SF2, chosen from diamond drill holes FUH168A and FUH 171 have been used for current preliminary metallurgical check work. (See determine 2 for location of drill holes).The estimated gold grade for composite pattern SF1 was 6.88 g/t Au and for composite pattern SF2 was 9.13 g/t Au.The preliminary metallurgical testwork comprised a sequence of diagnostic assessments on composite samples SF1 and SF2 to find out the amenability of gold extraction utilizing the next completely different strategies.Gravity focus assessments utilizing a Knelson MD3 concentrator.Bottle roll simulated intensive leaching assessments of gravity focus.Bottle roll cyanide leaching assessments of gravity focus.Bottle roll simulated carbon-in-leach (CIL) assessments (cyanide leaching with activated carbon) of gravity concentrateAlkaline leaching (NaOH digestion) and cyanide leaching assessments on gravity focus.Flotation assessments on the mixed gravity and intensive leach tails to provide a rougher focus.Alkaline leaching and cyanide leaching assessments on flotation focus.Chemical analyses have been carried out on the 2 composite samples. The common gold and sulphur grades of pattern SF1 have been 6.88 g/t Au and three.21% S, respectively. Pattern SF2 was increased in gold and sulphur grades than pattern SF1 and averaged 9.13 g/t Au and three.36% S.The best gold restoration achieved was from a mix of gravity focus adopted by flotation of gravity tails on pattern SF1 (92.36% total gold restoration).The best gold recoveries on pattern SF2 ranged between 86.25% and 88.49% from a mix of gravity focus adopted by flotation of gravity tails whereas this restoration was improved to 89.72% with a secondary flotation check carried out utilizing completely different reagents.
Desk 1 Faina Mineral Sources by Class as at December thirty first, 2019.
Determine 2. Plan displaying location of Faina relative to the Turmalina Mine and Mill Infrastructure and principal mineralized constructions. Please be aware the placement of diamond holes FUH168A and FUH171 from which composite sulphide samples SF1 and SF2 have been chosen for preliminary metallurgical testwork.
Determine 3. Lengthy part displaying the placement of Faina Venture relative to present operational areas 500m alongside strike on the Turmalina Mine.
Certified Particular person
Scientific and technical data contained on this press launch has been reviewed and accredited by Jonathan Victor Hill, BSc (Hons) (Financial Geology – UCT), FAUSIMM, Vice President Geology and Exploration, who’s an worker of Jaguar Mining Inc., and is a “certified particular person” as outlined by Nationwide Instrument 43-101 – Requirements of Disclosure for Mineral Tasks (“NI 43-101”).
The Iron Quadrangle
The Iron Quadrangle has been an space of mineral exploration courting again to the sixteenth century. The invention in 1699-1701 of gold contaminated with iron and platinum-group metals within the south-eastern nook of the Iron Quadrangle gave rise to the title of the city Ouro Preto (Black Gold). The Iron Quadrangle incorporates world-class multi-million-ounce gold deposits reminiscent of Morro Velho, Cuiabá, and São Bento. Jaguar holds the second largest gold land place within the Iron Quadrangle with simply over 62,000* hectares (*consists of Iamgold JV Settlement Areas).
About Jaguar Mining Inc.
Jaguar Mining Inc. is a Canadian-listed junior gold mining, improvement, and exploration firm working in Brazil with three gold mining complexes and a big land package deal with important upside exploration potential from mineral claims. The Firm’s principal working belongings are situated within the Iron Quadrangle, a prolific greenstone belt within the state of Minas Gerais and embody the Turmalina Gold Mine Complicated and Caeté Mining Complicated (Pilar and Roça Grande Mines, and Caeté Plant). The Firm additionally owns the Paciência Gold Mine Complicated, which has been on care and upkeep since 2012. The Roça Grande Mine has been on momentary care and upkeep since April 2019. Further data is out there on the Firm’s web site at www.jaguarmining.com
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SOURCE: Jaguar Mining Inc.
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