Core mineral find to help Infinity define NSW | Australian Markets

Infinity Mining has recognized the magnetic mineral pyrrhotite in drill core at its Cangai copper project in New South Wales, prompting the company to undertake a new magnetic survey to help future copper concentrating on.

The invention arose from re-logging of core from one drill gap at Cangai, which revealed the presence of the marginally magnetic mineral pyrrhotite in affiliation with copper mineralisation.

Pyrrhotite is a naturally occurring iron sulphide mineral, typically referred to as “magnetic pyrite” on account of its weak magnetism. It’s a related color to pyrite and is discovered in lots of rock varieties, together with marine sedimentary rocks, igneous rocks and marine-origin metamorphic rocks.

It’s generally related to different sulphide minerals comparable to pyrite, chalcopyrite (copper-iron sulphide) and pentlandite, a nickel-iron sulphide mineral which is the principal ore mineral for nickel.

The premise for Infinity’s proposal to run a new drone-based aeromagnetic survey is simple enough – the survey might be undertaken at a very low stage and with tight flight-line spacings.

These qualities ought to produce high-resolution outcomes delicate to the comparatively weak magnetic signatures in pyrrhotite to establish and model any copper-rich zones, particularly at depth or beneath surficial cowl.

Infinity sees the tactic as offering a fast, efficient, versatile and low-cost exploration device to establish extensions of the identified copper mineralisation and find new drill targets.

The core re-logging initially set out to re-assess high-grade core drilled by earlier house owners Castillo Copper, which incorporates a 4.39-metre intercept averaging 5.06 per cent copper, 2.56 per cent zinc and 20.1 grams per tonne (g/t) silver from 49.9m, with peak values of 14.45 per cent copper, 5.93 per cent zinc and 40.1g/t silver.

Infinity’s re-logging estimated the pyrrhotite content material to vary between 1 per cent and 20 per cent within the zone of highest copper content material between 49m and 54.27m down-hole.

Infinity will use its earlier magnetics knowledge to help design its new drone survey and the upcoming 3D modelling of the new drone-survey dataset.

Reference to the sooner knowledge will help the company goal key magnetic trends, cut out superfluous ground, preserve tight control on line-lengths, minimise overruns and keep prices in test.

The identification of magnetic pyrrhotite within high-grade copper mineralisation zones at Cangai highlights an thrilling alternative to outline new high-priority exploration targets for drill testing. Through the use of fashionable magnetic survey techniques and complicated 3D modelling, we are able to considerably improve our understanding of the copper system and successfully check for extensions to the identified high-grade copper zones.

Infinity Mining’s Cangai project was acquired from Castillo Copper in October 2024. It includes three granted exploration licences in north-east NSW, about 220km south southwest of Brisbane.

The Cangai copper mine was traditionally operational from 1904 to 1917, producing 5000 tonnes of copper, together with gold and silver.

The locality is understood for its high-grade copper deposits, with historic ore grades starting from 7-10 per cent copper.

The company is embarking on reinterpretation of previous CRA and Western Mining magnetics datasets, planning its new drone survey and making ready for 3D modelling of the new outcomes to come back from the new flight program.

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