Metallurgical Testing
Search documents
American Tungsten Reports Positive Initial Metallurgical Test Work Results From IMA Tungsten Project
TMX Newsfile· 2026-03-03 12:15
Core Viewpoint - American Tungsten Corp. has reported positive initial metallurgical test results from the IMA Mine, indicating the potential for efficient processing pathways for tungsten-silver mineralized samples [1][2]. Group 1: Test Program and Results - Sepro Laboratories conducted gravity and flotation tests on 130 kgs of tungsten quartz vein material from the IMA Mine, revealing average grades of 1.1% WO3, 83 ppm Ag, 0.09% Cu, 0.037% Mo, and 0.41% S [3][4]. - The test program aimed to evaluate the amenability of the mineralized materials to a gravity-flotation flowsheet, including methods such as dense media separation and Falcon centrifugal gravity concentration [4]. - Initial gravity tests achieved 84.4% WO3 recovery at a 29.6% mass pull, with potential for over 90% recovery through gravity methods [6][19]. - Heavy liquid separation tests demonstrated a 91.1% overall WO3 recovery at a 33.8% mass pull, indicating strong potential for DMS as a pre-concentration method [7][19]. - Sulfide-tungsten flotation testing recovered 81.4% of S, 83.2% of Cu, 72.0% of Ag, and 59.1% of Mo with minimal WO3 loss [8][19]. Group 2: Company Position and Future Plans - The company completed a $40 million bought deal financing, positioning itself to accelerate technical de-risking and advance development activities for the IMA Tungsten Project [2]. - American Tungsten is actively interpreting test results and planning further metallurgical and process design testing, including variability tests and additional flotation methods [10]. - The IMA Mine is a historically significant underground tungsten mine that produced approximately 199,449 MTUs of WO3 between 1945 and 1957, and the company is assessing the potential for re-starting mining operations [11][17].
High-Grade Drill Intercepts at Minto North West Zone and Ridgetop Zone Confirm the Potential of the Minto Copper-Gold-Silver System
TMX Newsfile· 2025-12-22 21:30
Core Insights - Selkirk Copper Mines Inc. has successfully completed 32,026 meters of its planned 50,000-meter drill program, achieving 64% completion, with drilling expected to resume in mid-January 2026 [3][7][11] - The company reported significant assay results from the Minto North west zone and Ridgetop zone, confirming high-grade mineralization and the expansion of the mineralized footprint [7][11][17] - The ongoing Trade-Off Study and metallurgical testing program are progressing well, with initial results indicating potential improvements in copper recovery from partially oxidized material [2][25][28] Drilling Program Update - The drill program has paused for the holiday break after completing 32,026 meters across 121 drill holes, with results from nine drill holes recently received [3][4] - The Minto North west zone has shown high-grade intercepts, including 4.96% Cu, 0.85 g/t Au, and 18.67 g/t Ag over 9.9 meters in drill hole 25SCM009, extending the mineralized zone by 150 meters [7][11] - The Ridgetop zone drilling has confirmed continuity of copper-rich mineralization, with significant intercepts including 1.46% Cu over 14.7 meters in drill hole 25SCM006 [7][17] Trade-Off Study and Metallurgical Testing - The Trade-Off Study is advancing on schedule, with input from Selkirk First Nation's consultants, focusing on mine design, processing, and waste management [2][25] - Initial metallurgical test results suggest that coarsening the primary grind size could maintain high copper recovery while reducing power consumption [28][29] - The company aims to link geological understanding of mineralized zones directly to their metallurgical behavior to improve recovery rates at lower costs [29] Annual General and Special Meeting - Selkirk Copper held its Annual General and Special Meeting on December 17, 2025, where shareholders approved all matters of business, including the election of directors and the appointment of Deloitte LLP as auditor [35][36] - A total of 65,827,507 common shares were represented at the meeting, accounting for approximately 52.09% of the total issued and outstanding shares [37]
Power Metallic Initiates Metallurgical Testing of Lion Deposit Phase 1 Metallurgy Recovery Contracted to SGS Canada Inc., Quebec City, QC and Lakefield, ON
Prnewswire· 2025-10-16 07:00
Core Insights - Power Metallic Mines Inc. is conducting preliminary metallurgical studies to assess the economic potential of its Nisk project, which is crucial for resource reporting and development risk mitigation [1][2][6] - The metallurgical testing is being performed by SGS Canada Ltd, focusing on the recovery potential of various metals including copper, platinum group elements (PGEs), gold, silver, and nickel [1][2][5] - The Lion deposit has been identified with two mineralization zones: a High-Grade zone (HG) and a lower grade Hanging-wall Zone (LG), with the majority of metal value concentrated in the HG zone [3][4] Metallurgical Testing Details - The testing involves a competitive bid process, with SGS Canada Inc. awarded the contract due to their expertise in flotation metallurgical testing [1] - Approximately 300 kg of sample material from each mineralization zone has been collected, with specific procedures for creating composite samples for testing [5] - The metallurgical tests are expected to take around 14 weeks, with results anticipated to be reported by January 2026 [6] Mineralization Characteristics - The copper mineralization is primarily found in coarse-grained chalcopyrite and cubanite, which are expected to yield good recoveries through conventional concentration methods [2] - The HG zone consists of semi-massive to massive copper sulphide mineralization, while the LG zone contains disseminated and veined structural mineralization [3][4] Company Overview - Power Metallic is focused on advancing the Nisk Project Area, which includes high-grade copper, PGE, nickel, gold, and silver systems [9] - The company has expanded its land holdings significantly, now controlling approximately 212.86 km² of prospective land following recent acquisitions [10][11] - Power Metallic also has interests in exploration licenses in Saudi Arabia, further diversifying its mineral exploration portfolio [12]
Go Metals Initiates Metallurgical Testing at KM98 Fe-Ti-V Project
Newsfile· 2025-09-29 13:16
Core Insights - Go Metals Corp. has initiated metallurgical testing at its KM98 Vanadium Titanomagnetite Project in Québec, aiming to gather initial data on magnetite and ilmenite concentrates, including the first measurements of concentrate quality [1][4] Group 1: Project Development - The metallurgical assessment is a crucial advancement for the KM98 project, as it will provide essential information regarding the types and quality of concentrates for potential end-users [2] - The company has collected ten large samples, each weighing between 10 to 15 kilograms, from a 240-metre section of the Roadside Occurrence, which includes both massive and semi-massive oxide mineralization [3] Group 2: Testing and Results - Metallurgical testing will be conducted by IOS Géosciences in Chicoutimi, Québec, with initial work focusing on a small set of samples to define processing parameters, which will then be applied to the full suite [4] - The testing program will evaluate recovery and concentrate quality for magnetite, ilmenite, and vanadium, while also collecting additional data on nickel, cobalt, copper, and scandium [4] - Preliminary results from the testing are expected in December 2025, followed by a comprehensive metallurgical report [4] Group 3: Company Overview - Go Metals prioritizes innovation and responsible exploration practices in the pursuit of critical metals within Canada's mining-friendly jurisdictions [5]
NEVADA KING REPORTS POSITIVE PHASE 2 METALLURGICAL TEST RESULTS AT ATLANTA CONFIRMING CONVENTIONAL OXIDE PROCESSING WITH A SIMPLIFIED FLOWSHEET
Prnewswire· 2025-07-16 10:30
Core Insights - Nevada King Gold Corp. has reported positive results from its Phase 2 metallurgical testing program at the Atlanta Gold Mine Project, indicating a simplified processing flow and potential for lower operating and capital costs [1][6][11] Metallurgical Testing Results - Phase 2 metallurgical testing confirmed and expanded upon Phase 1 results, demonstrating that gold and silver mineralization at Atlanta is suitable for conventional oxide processing methods [1][5] - The testing focused on two main categories of material: SBX (below the main unconformity) and volcanics (above the unconformity), with a total of 26 composites tested in Phase 2 [6][11] - Gold extraction rates for various materials were reported as follows: - Non-silicified volcanics: 90.1% at an average head grade of 2.71 g/t Au - Silicified volcanics: 86.1% at an average head grade of 2.80 g/t Au - SBX: 87.7% at an average head grade of 3.23 g/t Au - Dolomite: 80.6% at an average head grade of 0.32 g/t Au [7][12][16] Processing Methods - The inclusion of High Pressure Grinding Rolls (HPGR) is expected to lower overall operating costs for SBX material compared to traditional SAG/Ball mill processing [6][10] - Non-silicified volcanics are suitable for heap leaching, while silicified volcanics require conventional milling [9][10] - The revised flowsheet simplifies the processing method, potentially reducing initial capital costs by eliminating multiple crushing stages and streamlining heap leaching processes [11][12] Summary of Extraction Results - The combined gold extraction from fine milling at a 200 mesh grind (P80=75µm) showed robust recoveries across key mineralized units, with weighted averages of: - 90.1% for non-silicified volcanics - 86.1% for silicified volcanics - 87.7% for SBX [11][12] - Column leaching of conventional crushed material yielded a weighted average extraction of 83.1% for non-silicified volcanics [11][12] Comprehensive Testing Program - The Phase 2 program added to the extensive dataset from Phase 1, which included 22 drill core composites and three bulk samples, providing a comprehensive understanding of the various lithologies and grade ranges within the Atlanta resource [11][12]