Azure Minerals (ASX: AZS) has further unlocked the bulk tonnage potential of the company's Mexican projects, with the final assays for Promontorio and nearby Cascada having been received.
Azure is already eyeing additional resources through further drilling.
At the Cascada project, the company intersected 137.3 metres at 0.42 grams per tonne (g/t) gold and 6g/t silver from 48.3 metres, and adding to the bulk tonnage potential at the project - the hole finished in mineralisation.
Boosting the prospectivity of the project, another hole intersected a previously unknown vein containing high grades of copper, gold and silver mineralisation.
Importantly - this new vein is located to the west of the existing Mineral Resource, thereby opening up a new target for Azure to further expand the resource.
A third hole intersected plus 10% copper in a massive sulphide vein 40 metres to the south of the southern Mineral Resource boundary.
These intersections - along with the drill holes at the north of the Resource announced earlier in the month, have extended the total strike length of drilled mineralisation within the Promontorio system from 200 metres to more than 400 metres.
Azure said that the company considers it likely that with infill drilling, an upgrade of the existing Mineral Resource can be achieved.
Tony Rovira, executive chairman, told Proactive Investors today that at Cascada, "We will now collate all of the historical drill data, put it together with the recent drilling, and see whether that is sufficient to estimate an Exploration Target or even calculate a resource.
"Meanwhile we are doing additional detailed mapping and surface sampling over the Cascada zone."
The nearby Promontorio project high grade results
The latest highlights from Promontorio included the high grade:
- 0.75 metres at 5.16% copper, 0.4g/t gold and 190g/t silver from 200.55 metres;
- 3.70 metres at 8.83% copper, 6.6g/t gold and 57g/t silver from 18.0 metres; and
- 5.60 metres at 2.53% copper, 0.4g/t gold and 26g/t silver from 218.3 metres.
Rovira added, "These drilling results give us confidence that the size of the resource can be increased, possibly by up to 50%.
"However further drilling is probably needed."
Adding some background to Promontorio, the deposit comprises veins of massive, semi-massive and disseminated copper sulphides containing strong gold and silver credits.
The current Indicated and Inferred JORC Resource is; 502,000 tonnes at 4.7% copper, 2.1g/t gold and 99g/t silver.
The deposit remains open in all directions and Azure believes that the results have confirmed the potential for additional resources.