GoGold Resources Inc. is pleased to announce positive results of the initial metallurgical testing of the Los Ricos North deposits. The test program encompassed four deposits: Casados, El Favor, La Trini and El Orito. The testing was completed independently at the SGS Lakefield laboratories located in Lakefield, Ontario, Canada and supervised by GoGold’s process consultants D.E.N.M. Engineering Ltd of Toronto.
“As we approach the release of the initial Mineral Resource Estimate at Los Ricos North, we have initiated metallurgical testing for the identified deposits. We are very pleased to report that the initial non-optimized metallurgical results show the cyanide leachability of the Casados, El Favor, and La Trini deposits,” said Brad Langille, President and CEO. “Also, the one ore body in the district which we’ve identified that is sulfide mineralization – El Orito, which consists of silver-gold-base metals, showed approximately 90% of the sulfide mineralization reported to a flotation concentrate. This initial work is encouraging, and we will continue with the next phases of minerology and metallurgy test work.”
The testing was completed on 108 HQ drill core samples which were separated into 4 composites which included between 18 and 42 samples. These composite samples broadly represented the average gold and silver grades and mineralogy of each deposit. Three of the deposits (Casados, El Favor and La Trini) were subjected to direct cyanidation leaching of the contained gold and silver, while El Orito was subjected to flotation of the base metals (copper, lead and zinc) and the precious metals. The overall leach extractions achieved for Casados, El Favor and La Trini are given in Table 1.
Table 1: Metallurgical Extraction Results for Casados, El Favor and La Trini
Deposit |
Test1 |
Head Grades (g/t) |
Extraction (%) |
||
Au |
Ag |
Au |
Ag |
||
Casados |
Whole ore cyanidation |
0.42 |
87 |
86 |
91 |
El Favor |
Whole ore cyanidation |
0.30 |
140 |
90 |
90 |
La Trini |
Whole ore cyanidation |
0.95 |
79 |
96 |
96 |
1. |
Cyanidation tests were carried out at 5,000 ppm NaCN, grind P80 – 75 micron, and 96-hour leach period tests. |
For El Orito, the flotation tests were carried out at a grind of P80 -120 microns using a batch laboratory flotation machine and standard flotation reagents. Over 94% of the contained sulfide minerals reported to a rougher concentrate. No further development or optimization of the flotation circuit was done in respect to regrinding and cleaner flotation stages, this will be completed in a subsequent phase of the metallurgical work. Table 2 summarizes the Orito flotation test.
Table 2: Metallurgical Extraction Results for El Orito
Deposit |
Test |
Head Grade |
Recovery to Flotation Concentrate (%) |
||||||||
Au (g/t) |
Ag (g/t) |
Pb (%) |
Zn (%) |
Cu (%) |
Au |
Ag |
Pb |
Zn |
Cu |
||
El Orito |
Flotation |
0.12 |
37 |
0.87 |
0.87 |
0.15 |
86 |
90 |
87 |
90 |
90 |
GoGold is planning to engage SGS Lakefield in further metallurgical testing to optimize process conditions and extractions.
David J. Salari, P.Eng. of D.E.N.M Engineering Ltd is a Qualified Person as defined under National Instrument 43-101. Mr. Salari has reviewed and approved the scientific and technical information in this press release.
VRIFY Slide Deck and 3D Presentation
VRIFY is a platform being used by companies to communicate with investors using 360° virtual tours of remote mining assets, 3D models and interactive presentations. VRIFY can be accessed by website and with the VRIFY iOS and Android apps. Access the GoGold Company Profile on VRIFY at: https://vrify.com
The VRIFY Slide Deck and 3D Presentation for GoGold can be viewed at: https://vrify.com/decks/10437 and on the Company’s website at: www.gogoldresources.com.
Los Ricos District Exploration Projects
The Company’s two exploration projects at its Los Ricos property are in Jalisco state, Mexico. The Los Ricos South Project began in March 2019 and an initial resource was announced on July 29, 2020 which indicated a Measured & Indicated Mineral Resource of 63.7 million ounces AgEq grading 199 g/t AgEq contained in 10.0 million tonnes, and an Inferred Resource of 19.9 million ounces AgEq grading 190 g/t AgEq contained in 3.3 million tonnes. An initial PEA on the project was announced on January 20, 2021 indicating an NPV5% of US$295M.
The Los Ricos North Project was launched in March 2020 and includes drilling at the El Favor, La Trini, Mololoa, Casados and El Orito targets. The Company is expecting to release its initial resource estimate on the Project in late 2021, and has a drill program for an additional 100,000 metres of drilling for 2022 in place.
About GoGold Resources
GoGold Resources (TSX: GGD) is a Canadian-based silver and gold producer focused on operating, developing, exploring and acquiring high quality projects in Mexico. The Company operates the Parral Tailings mine in the state of Chihuahua and has the Los Ricos South and Los Ricos North exploration projects in the state of Jalisco. Headquartered in Halifax, NS, GoGold is building a portfolio of low cost, high margin projects. For more information visit gogoldresources.com.