Tasmania

Aberfoyle

High-grade tin mineralisation was discovered at Aberfoyle in 1916, with the deposit hosting underground mining activities until its closure in 1982.

Production is recorded at 2.1 million tonnes of ore at 0.91% Sn and 0.28% WO3.

The mineralisation at Aberfoyle occurs mainly as Cassiterite and Wolframite within a swarm of steeply dipping quartz veins that strike to the north. Host rocks are mudstones, siltstones and sandstones of the Mathinna beds.

The nearby Lutwyche prospect is comprised of two sets of mineralised veins that can be traced along strike for approximately 750m before being obscured by Permian sediments. There are other significant zones of mineralisation in the area that warrant further investigation.

In particular, the Lutwyche South East vein system, located SE of the main Lutwyche system, extends for 500m and is identified by strong soil chemistry and electrical geophysics. Also, the 40m wide Kookaburra vein system, located 200m SW of the main Lutwyche vein system, is related to an Aberfoyle vein known as Johnson’s Vein, and could be the same vein.

The Lutwyche vein system is an essentially unmined deposit (1.1Mt at 0.45% WO3 and 0.45% Sn), similar in size to the Storey’s Creek mine. It has been accessed by a cross-cut from the deepest levels of the Aberfoyle mine, and subjected to underground drilling from that location. Little surface drilling has been completed.

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