Prodigy Gold NL (ASX:PRX) High-Grade Gold Assay Results
27 November 2024
Price Sensitive Announcement $
Highlights:
- PhotonAssay results for selected samples from Hyperion and Tregony North align well with previously reported Fire Assay results.
- High-grade intercept into Tethys lode for hole HYRC24004, originally reported as 10m @ 15.9g/t Au, is very consistent using both analytical techniques with new intercept calculated at 10m @ 15.6g/t Au.
Overview:
Prodigy Gold NL (ASX: PRX) (“Prodigy Gold” or the “Company”) is pleased to announce the receipt of the Chrysos PhotonAssayTM (“PhotonAssay”) results for thirty reverse circulation (“RC”) samples from drilling completed during 2024 at the Hyperion and Tregony North areas on the Company’s Tanami North Project in the Northern Territory (Figures 1 & 2). The RC samples selected for analysis had all reported Fire Assay grades greater than 8.5g/t Au1.
The Company successfully used the PhotonAssay method to check high-grade gold samples from its 2023 drilling program at Hyperion and Tregony2 and sought to replicate this result by confirming the higher-grade Fire Assay results from the 2024 drilling programs at Hyperion and Tregony North.
Fire Assays involve the analysis of a 50-gram charge of a finely pulverised (80% of material smaller than 80 micron – P80 80µm) sub-sample derived from the 2-3kg RC sample. While this method is commonly practiced globally for gold analysis, it can potentially introduce a sampling bias, particularly in samples that contain coarse gold particles.
PhotonAssay is a fast, accurate and environmentally friendly analytical method for gold and other elements that was originally developed by Australia’s national science agency, CSIRO. It relies on the principles of photon activation. In this method, a 500-gram sub-sample containing gold is hit with high-energy photons. When these photons interact with the atomic nuclei of gold atoms in the sample, they induce reactions that result in the emission of characteristic gamma rays. By measuring the intensity of these gamma rays, the amount of gold present in the sample can be accurately determined.
Both, the PhotonAssay and Fire Assay techniques, report significant gold grades with very good correlation between both sets of results. This check analysis process provides Prodigy Gold the confidence that the reported higher grades are repeatable and strengthening the potential for future development of the Project.
Company Notes:
Prodigy Gold Managing Director, Mark Edwards said:
“Prodigy Gold has used PhotonAssay to cross-check Fire Assay results for gold because it provides a complementary, non-destructive, and highly accurate alternate check method for gold analysis. Fire Assay, while considered a benchmark technique, involves multiple steps that can introduce variability, such as sample handling, flux composition, or human error. The smaller Fire Assay sub-sample can also add additional bias to any analysis technique. PhotonAssay enables companies to verify these results with a fast, chemical-free process on a larger sub-sample that can minimize biases and improve confidence in the data. This dual-method approach ensures robust quality control, enhances the reliability of resource estimates, and helps identify discrepancies early in the process, ultimately improving operational decision-making.
The PhotonAssay results reported in this release align closely with the Fire Assay outcomes, giving Prodigy Gold confidence that the 2024 drilling results are consistent and reproducible across different assay methods, across different areas of the Deposit and across different Deposits. Prodigy Gold will continue to utilise this technique as a way of adding confidence in analytical methods, particularly around zones of higher grades, which can have a significant impact on mineral resource estimates”.
Full ASX Announcement: 6A1239891.pdf