Aus Tin Mining Limited has commenced tin mining at its Granville East Mine, which is located approximately 20 kilometres north of the historic mining town Zeehan, on the west coast of Tasmania.
The Granville Tin Project comprises two mining leases (21M/2003 and 9M/2006) and is approved for Level 1 operations, an open cut pit (Granville East) and a processing plant.
Run‐of‐Mine material from the first mining block is set to be transported to the processing plant, enabling plant feed to transition from low‐grade stockpiles to high‐grade mine material.
The first mining block is located at the southern end of the open cut pit and was extracted from the hanging wall shale that overlies the cassiterite‐magnetite skarn.
This mining block is estimated at 430 tonnes based on eightsub‐blocks each 3 metres by 1.5 metres by 4 metres.
Assay results from blast hole samples collected for grade control purpose confirm the high‐grade mineralisation at the Granville East Mine, including drill intersections of 4 metres at 6.56 per cent tin (R3C) and 4 metres at 4.34 per cent tin (R4D).
The company has further stated that the arithmetic average tin grade for the eight blast holes contained within the mining block were 2.1 per cent tin.
Aus Tin Mining CEO Peter Williams said the company is delighted to have achieved this major milestone as they transition to Level 2 operations and now move to processing the material.
“We are particularly delighted with the grade of the first block which across eight holes averaged 2.1 per cent tin and is more typical of underground mines,” he said.