Dual listed Black Mountain Resources (ASX:/AIM: BMZ) has found high grade silver from grab samples at New Departure Silver Project located in Montana.
This follows sampling from the Bonanza Zone, which returned grades of up to 1,684g/t silver, where Black Mountain is driving the decline.
Other grab samples returned grades of up to 216g/t silver, which will see the lower grade silver material for blending the ore as part of its low cost production.
Importantly, during its development work, the mining contractors encountered previously unknown historic workings from the early 1920’s.
Further mapping and testing of all these workings will establish their significance.
The latest grab sample results were taken from the historic stopes and existing pillars at two locations: the Silver Springs Level of the Black Vein and the Coppin Zone side of the Stinker Incline.
Intriguingly, this could establish two new mining zones at the New Departure Project.
Black Mountain chairman Peter Landau said, “Our development programme at the historic New Departure Silver Mine is proving to be highly productive.
"It has enabled us to demonstrate the high grade nature of the regional silver mineralisation through our daily sampling programme, but it has also identified two new potential mining zones and unearthed previously unknown workings, dated from the 1920s, which is exciting and will be investigated further.”
As part of its on‐going mining activities, work is focussed on identifying new mineralisation structures and confirming the location of known mineralisation areas in the Bonanza Zone, as well as developing the decline towards the Main Zone.
Landau also commented on upcoming silver production: "the coming weeks will be marked by strong newsflow from New Departure as we continue to drive the decline towards the Main Zone, which will signal the start of cash generative silver production for Black Mountain.”
Black Mountain is also in the process of taking bulk ore samples for full metallurgy and mill testing and processing as part of finalising toll treatment arrangements.
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