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11 of 20 Samples on the South Zone Assay Greater than 6.0 g/t Gold
Vancouver, British Columbia--(Newsfile Corp. - March 27, 2025) - Orestone Mining Corp. (TSXV: ORS) (OTC Pink: ORESF) (FSE: O2R2) ("the Company") is pleased to announce that it has completed a program of sampling on its Francisca property located in Salta Province, northwestern Argentina approximately 80 kilometres northwest of the city of Salta. Orestone is targeting an oxide gold deposit mineable by open pit methods and amenable to heap leach gold recovery.
A total of 38 check samples were taken; 20 samples on the South gold zone and 18 on the North gold zone and other areas. The South gold zone is a strongly altered quartz stockwork outlined over a strike length of 500 metres and width of 50 - 100 metres. Of the 20 samples taken on the South zone 11 were greater than 6.0 g/t gold and 8 samples assayed between 0.36 and 4.5 g/t gold. 13 samples were taken on the North gold zone, a quartz manganese stockwork zone, values are from 0.01 to 21.7 g/t gold averaging 0.38 g/t gold excluding two high grade samples of 9.4 and 21.7 g/t gold.
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The sampling confirms the high-grade nature of the South gold zone with 20 samples ranging in value from 0.03 to 33 g/t gold and 2.0 to 160 g/t silver, averaging 5.78 g/t gold and 29.2 g/t silver (gold grades cut to 10 g/t and silver grades cut to 60 g/t) (for larger map click here).
David Hottman, Orestone's CEO, stated: "The Francisca property covers a robust gold system discovered during a period of historically very low gold prices, which has seen no meaningful work conducted on it for almost 20 years. Results of the current sampling program correlates well with data from the historic work. Our goal is to define an oxide gold deposit that can be mined by open pit and would be amenable to low-cost heap leach gold recovery methods. Additional information regarding exploration plans will be released in the near future."
Previous sampling over the South zone noted in historic summary reports averaged, 5.69 g/t gold from 46 samples (high grade results cut to 10 g/t gold). Of these, 28 samples ranged from 3.0 to 109 g/t gold and 13 samples graded from 0.11 to 2.19 g/t gold. Orestone does not have the detailed assay data of the historic trenches or drilling as only summary data and maps of the higher-grade intervals encountered are available. The observations of gold assay values in the trenches are non 43-101 compliant due to their historic nature but the detailed geological mapping and exploration programs were done by competent professional geologists and indicate the presence of a significant, disseminated gold stock-work system that was only poorly tested by diamond core drilling.