Niuminco Group releases Great Pyramid tin Resource

THE DRILL SERGEANT: Niuminco Group (ASX: NIU) announced the release of an Inferred Mineral Resource for the Great Pyramid tin prospect in Eastern Tasmania.

The Great Pyramid deposit Inferred Mineral Resource has been estimated at 1.3 million tonnes at 0.3 per cent tin for 3,900 tonnes of contained tin using a 0.2 per cent tincut off, or 5.2 million tonnes at 0.2 per cent tin for 10,400 tonnes of contained tin using a 0.1 per cent tin cut off.

Niuminco explained the Great Pyramid Inferred Mineral Resource contains three distinct areas of higher grade tin mineralisation, being the North Block, South Block and Brocks Block.


Great Pyramid deposit drilling and mineralisation block locations. Source: Company announcement


Niuminco owns 72.54 per cent of, and manages TNT Mines Limited, which is the 100 per cent owner of the Great Pyramid prospect.

Great Pyramid is one of the unmined prospects within TNT’s Aberfoyle tin and tungsten project.

The project consists of the old workings and unmined mineralisation at the Aberfoyle, Storey’s Creek and Lutwyche mines, as well as the largely unmined prospects at Royal George and Great Pyramid.

Niuminco said Inferred Mineral Resource estimates are expected shortly for the Lutwyche and Royal George deposits.

TNT also controls other Tasmanian assets at Moina, Oonah and Anchor and is evaluating the potential for large scale, low grade open pit mining at Great Pyramid as part of the re-development of the Aberfoyle tin and tungsten project.

Niuminco said it is is currently developing an exploration plan to test high-grade, depth and strike extents while advancing metallurgical studies.

“The limited drilling at depth into Great Pyramid has identified a number of zones of higher grade mineralisation, compared to the overall resource grade, which will be targeted by follow up drilling,” Niuminco Group said in its ASX announcement.

“In addition to the depth potential, the deposit remains open along strike south eastwards of the north block and north westwards of the Brocks block.”