A first batch of 10,304 kg of mineralized material has been processed through the pilot processing plant, which has recently been upgraded, with a gold dore bar poured on-site as part of preliminary metallurgical and plant efficiency tests.
The Company has been clearing the access and a collapsed section of the
The Santa Barbara exploratory tunnel was extended for an additional 25 meters following Vein #1 after the completion of the milestone 500-ton bulk sample released in 2021. Channel sampling started at 2-meter intervals from the crosscut that accessed Vein #2 and samples from this section are now at
Sample collection method
The mining method employed at the exploratory tunnels consisted of splitting the vein from the barren wall rock and separating and collecting vein material with a minimum of wall rock attached. The vein material from the tunnel was then bagged at the tunnel portal in woven plastic bags and individually weighed until an approximate nominal 10-to-15-ton batch sized sample was completed. Samples were then loaded in random order into a truck and taken to the Santa Barbara pilot gold processing plant. Once the batch was completed, the section of tunnel from where the sample was removed was surveyed and followed with channel sampling at 1-meter intervals.
At the plant site, sample bags were dumped in random order after passing through a first stage of crushing to 2-inch and a second stage of crushing to 0.5 inch size. Crushed material was then stored in a bin with a vibrating door that self-feeds the primary ball mill. Crushed material was then sent to the primary ball mill (>40% passing 150 mesh) and secondary ball mill (>60% passing 200 mesh) connecting with the three 15m3 cyanide leaching talks where the pulp was agitated before adding reagents for homogenization purposes.
The pilot plant does not have a gravity separation stage or flotation system therefore there was no loss of material in the process and the sample pulp reaching the cyanide leaching tanks was considered the entire sample, with the sample being homogenized. A >1 kg head grade sample was then collected from the tank before the cyanide leaching process started and sent to SGS labs in
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