Tollu Deep Hit: Copper in Gabbro Signals Big Upside for Redstone Resources

In this ASX small-cap analysis, James Whelan and Redstone Resources geologist Greg Shirtliff unpack the latest Tollu drill results from Western Australia. The deep diamond hole beneath Tollu encountered high-grade copper in quartz veins and, importantly, the presence of gabbro below the deposit, suggesting a potential magmatic copper-nickel-cobalt system similar to Nebo Babel and Voices Bay. The discussion covers why the gabbro host and associated chlorite alteration matter, what the cobalt signature could mean, and how these results could expand Tollu’s prospectivity beyond the currently defined copper zone.