Aus Tin Mining has started tin mining at its Granville East Mine located in Tasmania, with the initial mining block estimated to consist of 430t.
The company plans to transport the run‐of‐mine material from the first mining block to the processing plant, thereby enabling plant feed to be converted to high‐grade mine material from low‐grade stockpiles.
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Aus Tin Mining CEO Peter Williams said: “We are delighted to have achieved this major milestone as we transition to Level 2 operations and will now move to processing this material.
“We are particularly delighted with the grade of the first block which across eight holes averaged 2.1%Sn and is more typical of underground mines.”
Located at the southern end of the open cut pit and extracted from the hanging wall shale, the first mining block is based on eight sub‐blocks each measuring 3m x 1.5m x 4m and a relative density for mineralised material of 3t/m³.
Assay results from eight blast hole samples that are gathered for grade control purpose confirm the high‐grade mineralisation at the Granville East Mine.
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By GlobalDataAus Tin Mining noted that the arithmetic average tin grade for the blast holes contained within the first mining block was 2.1% tin.
The company earlier reported that it plans to procure certain services contracted to the civil and mining contractor directly.
Additional components of the contract including blasting services and fuel supply are now assumed by Aus Tin Mining to cut delays in operations further.
Furthermore, after removing the crushing component of the contract, Aus Tin Mining is currently holding talks with alternative parties to use surplus equipment at the processing plant.
Located around 20km north of the mining town Zeehan on the west coast of Tasmania, the Granville Tin project lies within the Heemskirk tin field.
Two mining leases, granted in 2003 and 2006 respectively, for the project are currently approved for Level 1 operations, an open cut pit and a processing plant.
