Aus Tin mines first ore block at Granville following mine expansion

Truck load from first mining block – hanging wall shale (L) and skarn (R). Image: Aus Tin Mining

Aus Tin Mining has recommenced mining at its Granville East mine in Tasmania, following the completion of a new tailings storage facility as part of its level two expansion.

Its first ore block, estimated at 430 tonnes, has marked Granville’s transition to level two operations.

The company will transport run-of-mine material from the mining block to the processing plant, enabling the plant feed to be converted from low-grade stockpiles to high-grade mine material.

Aus Tin chief executive Peter Williams said mining of this first block of high-grade material was a major milestone for the company as it was entering level two operations and moving to material processing.

“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,” Williams said.

The first ore block was located at the southern end of the open cut pit. It was extracted from the hanging wall shale that overlies the cassiterite-magnetite skarn.

Aus Tin was attempting to minimise further delays to the Granville operations by seeking to directly procure certain services contracted to the civil and mining contractor.

Production of tin concentrate at Granville first launched in August 2016, and the tailings storage facility was the major permit condition for Aus Tin to increase its tin concentrate production.

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