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Tocvan Announces Favorable Gold and Silver Values in Bulk Sample Progress Report Updates on Latest Results as Heap Leach Continues

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Tocvan Announces Favorable Gold and Silver Values in Bulk Sample Progress Report Updates on Latest Results as Heap Leach Continues

 

 

 

 

 

Tocvan Ventures Corp. (CSE:TOC) (OTC:TCVNF) (FRA:TV3) is pleased to provide an update and sampling results from a Bulk Sample being completed at its Pilar gold-silver project in Sonora, Mexico. The Company’s field management and technicians remain active with the heap leach process ongoing for the Bulk Sample. Over 800 tonnes of material are being processed through heap leach, an additional 350 tonnes of crushed material and 250 tonnes of raw-bulk sample are available for gravity recovery and later agitated leach testing. Initial results from the first week of leaching highlight the start of gold and silver going into solution for recovery. An onsite laboratory is being used during the program with weekly duplicate samples sent to LTM (Hermosillo) and SGS (Durango). The results confirm the performance of the onsite laboratory and indicate a successful start to the leaching process (see Charts 1 and 2). Results from initial sampling of the carbon material used to filter the leaching solution and capture gold and silver indicate the process is performing well. In addition, 148 samples new samples were collected from the fine fraction of screened material not included in the heap leach pile are showing improved grades of gold and silver, averaging 2.1 g/t Au and 14.8 g/t Ag. The fine fraction along with additional bulk sample material will be used in testing gravity recovery methods with later agitated leach, as suggested by the leaching study completed by LTM, showing potential for the high recovery of both gold and silver (see Table 2). LTM also completed a metallic screen study on the fine fraction material indicating that 12.4 to 14.1% of the Gold and 4.5 to 5.3% of the Silver are distributed within the coarser screened (+140 mesh) material, suggesting that most of the gold and silver is fine but coarse and free gold are still present. All other samples were submitted to ALS Hermosillo for fire assay and ICP analysis. Blanks and standards were submitted into the sample stream as part of the Company’s robust QA/QC protocol. The assayed samples total 815.8 kg of fine fraction material.

 

 

“As the bulk sample continues, preliminary results are showing the excellent potential of Pilar.” stated Brodie Sutherland, CEO. “With each step forward, we are getting a more accurate representation of what kind of grade and recovery potential exist at Pilar, giving us added confidence for the development of the project. We look forward to updating as we continue to evaluate the bulk sample and compare multiple recovery methods to optimize that potential.”

 

 

About Tocvan Ventures Corp.

 

 

Tocvan is a well-structured exploration development company. Tocvan was created in order to take advantage of the prolonged downturn in the junior mining exploration sector, by identifying and negotiating interest in opportunities where management feels they can build upon previous success. Tocvan has approximately 39.9 million shares outstanding and is earning 100% into two exciting opportunities in Sonora, Mexico: the Pilar Gold-Silver project and the El Picacho Gold-Silver project. Management feels both projects represent tremendous opportunity to create shareholder value.

 

 

Brodie A. Sutherland, P.Geo., CEO for Tocvan Ventures Corp. and a qualified person as defined by Canadian National Instrument 43-101, has reviewed and approved the technical information contained in this release.

 

 

Quality Assurance / Quality Control

 

 

Samples were shipped for sample preparation to ALS Limited in Hermosillo, Sonora, Mexico and for analysis at the ALS laboratory in North Vancouver. The ALS Hermosillo and North Vancouver facilities are ISO 9001 and ISO/IEC 17025 certified. Gold was analyzed using 50-gram nominal weight fire assay with atomic absorption spectroscopy finish. Silver and other elements were analyzed using a four-acid digestion with an ICP finish. Control samples comprising certified reference samples and blank samples were systematically inserted into the sample stream and analyzed as part of the Company’s robust quality assurance / quality control protocol. Duplicate samples are submitted to LTM (Laboratorio Tecnológico de Metalurgia), in Hermosillo, Sonora. LTM facilities are an ISO 17025 and ISO 9001:2015 certified lab. Gold and silver are analyzed using 30 g nominal weight fire assay with AA finish for Au and gravimetric determination for Ag. Other elements are analyzed using aqua regia digestion with an ICP finish.

 

Posted June 13, 2023

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