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Cartier Starts Metallurgical Testwork Program at Cadillac
Globenewswire· 2025-09-30 12:00
Core Viewpoint - Cartier Resources Inc. has initiated a comprehensive metallurgical sampling and testwork program for its Cadillac Project, aimed at optimizing processing methods and enhancing project economics [1][2]. Group 1: Program Objectives - The metallurgical program is a critical milestone for de-risking the Cadillac Project, focusing on understanding mineralized material responses to processing methods to define an efficient and cost-effective flowsheet [2]. - The program aims to reduce capital and operating costs while improving the environmental footprint, ultimately enhancing shareholder value [2]. - The initiative follows the launch of baseline environmental studies and aims to generate updated, high-quality data reflecting current standards [3]. Group 2: Historical Context - Historical production from the Chimo mine processed approximately 2.4 million tonnes of mineralized material from 1966 to 1997, with an average recovery rate of 90.6% for contained gold [4]. - The first two operators achieved higher extraction rates of around 94%, while the last operator, Cambior, saw a drop to 89% [4]. Group 3: Methodology of Testwork - The testwork will utilize NQ-size half-drill core intervals to represent the mineralization and average head grade, generating six composites totaling 300 kg from three deposits [6]. - Composites will undergo cyanidation tests at different grind sizes, followed by gravimetric concentration separation and cyanide destruction tests [7]. Group 4: Expected Outcomes - The program aims to define expected gold recovery rates and improve upon historical results from the Chimo deposit, while establishing recovery data for the East Chimo and West Nordeau deposits [9]. - It will support the development of an integrated process flowsheet and provide critical data for future trade-off studies [9]. Group 5: Company Overview - Cartier Resources Inc. is focused on gold exploration and development in Quebec, with a strategy to unlock the potential of its Cadillac Project, which covers 14,000 hectares along the Cadillac Fault [12][14]. - The Cadillac Project integrates the historic Chimo Mine and East Cadillac projects, positioning the company for rapid advancement and value creation [12].
Perpetua Resources in talks with mining companies for antimony processing
Yahoo Finance· 2025-09-29 11:15
Group 1 - Perpetua Resources is in discussions with several mining companies, including Glencore and Trafigura, to establish partnerships for antimony processing in the US, aiming to secure a steady supply for domestic consumers [1][5] - The company plans to issue a request for proposal (RFP) to evaluate the technical and economic viability of off-site processing facilities, focusing on production capacity, financial stability, environmental performance, and transport reliability [2] - The RFP is expected to be issued in the coming weeks, with a final decision anticipated by Q4 2025, following a due diligence review [3] Group 2 - Perpetua Resources has received conditional approval from the US Forest Service to begin developing the Stibnite Gold Project, which is contingent on financial assurance bonding [4] - Antimony is classified as a critical mineral by the US Department of the Interior, essential for national security and used in manufacturing applications such as bullets and solar panels [5]
Bayhorse Silver Installs Its Steinert Ore-Sorter At Its Bayhorse Flotation Mill, Payette, Idaho, USA
Newsfile· 2025-09-23 12:18
Core Viewpoint - Bayhorse Silver Inc has installed its Steinert Ore-Sorter at its flotation mill in Payette, Idaho, after a 22-month rental period, aiming to enhance processing capabilities and generate additional revenue while awaiting mine permitting [1][3]. Group 1: Installation and Revenue Generation - The Steinert Ore-Sorter was previously rented to Canadian Critical Minerals Inc, generating approximately US$718,000 in gross rental revenue during the rental period [2]. - The installation of the Sorter at the Bayhorse Mill allows for third-party processing and potential revenue generation [3]. Group 2: Mineralization and Processing - The mineralization at the Bayhorse Silver Mine primarily consists of tetrahedrite, which contains silver, copper, iron, and zinc, with minor gold present [4]. - Historical mining data indicates that 21% of mined grades were between 20 oz/t and 100 oz/t, while 73% were between 6 oz/t and 20 oz/t [4]. - Metallurgical testing has shown that typical concentrates can range from 7,500 to 12,000 g/t silver, 9-11% copper, 10-12% antimony, and 15-18% zinc [5]. Group 3: Technological Advancements - The company is exploring the Allihies Engineering Inc's proprietary Alkaline Selective Leaching (ASL) technology, which has demonstrated high extraction rates of antimony [8][9]. - The Sunshine Leaching Process, previously used at the historic Sunshine Silver Mine, achieved antimony leach separation recoveries of up to 87%, while Allihies' ASL technology claims up to 99% recovery [10]. Group 4: Company Overview - Bayhorse Silver Inc holds a 100% interest in the Bayhorse Silver Mine, which has an inferred resource of 292,300 tons at a grade of 21.65 opt (673 g/t) for a total of 6.3 million ounces of silver [15]. - The company operates a flotation processing facility capable of processing up to 60 tons/day and has an offtake agreement with Ocean Partners UK Limited [15].
G50 announces Mineralogy Breakthrough for Gallium at Its Golconda Gold-Silver-Zinc Project in Arizona
Prnewswire· 2025-08-06 12:04
Core Insights - G50 Corp Limited has confirmed a significant breakthrough in understanding gallium mineralization at its Golconda Project, enabling the use of traditional mineral processing techniques for gallium extraction [1][2]. Mineralogical Study Results - The Phase 2 mineralogical study revealed that 85 to 92% of the total gallium is found in sericite, a type of muscovite, which is beneficial for gallium concentration and extraction [2]. - The coarse-grained nature of the rock is also a positive characteristic for traditional mineral processing methods [2]. Project Significance - The managing director/CEO of G50 highlighted that targeting muscovite allows for the development of a conventional extraction flow sheet for gallium recovery, marking a milestone for the Golconda Project [3]. - Recent drilling has confirmed consistent gallium intercepts and grades, along with a significant new discovery of gold, silver, and zinc, positioning Golconda as a vital source of precious metals and potential gallium supply for the US [3]. Market Context - The supply of gallium is critically controlled by China, which has recently prohibited its entry into the US, raising concerns among US defense contractors regarding the availability of this essential metal [4]. - The urgency for domestic gallium supply is underscored by its necessity in defense production and data center power demands, highlighting the importance of advancing projects like Golconda to reduce reliance on Chinese supply [4].