Dart Mining NL is advancing a comprehensive review of its 100% owned tin-tungsten tenements in Northeast Victoria, aiming to unlock value from historic mines as tin and tungsten prices soar.
- Review of Walwa, Cudgewa, and Berringama tenements underway
- Walwa holds Victoria’s largest primary tin production history
- Tungsten prices surge over 500% in past year
- Historic drilling data being compiled for 3D modelling
- Priority targets identified at McHargs and Koetong tungsten prospects
Tin and Tungsten Prices Drive Renewed Interest
Dart Mining NL (ASX:DTM) is ramping up exploration efforts in Northeast Victoria, prompted by a remarkable surge in tin and tungsten prices. Tin has climbed 34.7% year-to-date to over USD$56,000 per tonne, while tungsten prices have exploded more than 500% in the past year, with ammonium paratungstate (APT) trading at a record USD$250,000 per tonne. This price momentum has sparked a fresh look at Dart’s wholly owned tenements at Walwa, Cudgewa, and Berringama, all with a deep history of tin and tungsten production.
Walwa: Victoria’s Premier Hardrock Tin Field
At the heart of Dart’s project is Walwa, which boasts the highest recorded primary tin production in Victoria. Historical records show substantial mining at Walwa, Mt Alwa, and Bounce tin mines within EL007426. Since the late 1960s, around 20 diamond drill holes and over 100 reverse circulation percussion holes have been logged, creating a rich dataset now being digitised and compiled for advanced assessment. Dart’s recent field inspections confirm excellent site access, with an extensive network of tracks suitable for drilling.
The geology at Walwa features several shallow-dipping greisenous aplite and pegmatite sills, known to host coarse cassiterite (tin ore). These mineralised sills, some up to 8 metres thick, stretch over a corridor more than 3km long. The last significant mining at the open pit was in the 1970s, processing 97,000 tonnes of tin-bearing ore. Dart plans to develop a 3D model of this mineralisation to prioritise drill targets.
Tungsten Prospects at Koetong and McHargs
Tungsten exploration is gaining traction alongside tin. The Koetong area within Dart’s EL007426 hosts historic tungsten mines such as Keady’s and Roper’s, with quartz reefs containing scheelite and wolframite, sometimes alongside cassiterite and gold. Meanwhile, the McHargs Tungsten Project, located 5km southeast of Walwa, presents parallel scheelite mineralised lodes that were previously considered uneconomic during low-price periods.
With tungsten prices at record highs and demand surging; partly due to reduced Chinese exports; McHargs has emerged as a priority exploration target. Dart is compiling historic mining and exploration data across these prospects to inform next steps.
Next Steps: Data Integration and Target Generation
Dart’s immediate focus is on compiling and assessing the extensive historic datasets across its tenements. This includes digitising drilling results and mining records to build detailed 3D geological models, especially at Walwa. Field inspections are underway to confirm drilling access and conduct limited rock chip sampling to validate grades of tin, tungsten, tantalum, and niobium.
Chairman James Chirnside emphasised the strategic timing: “We are very excited to finally have granted tenements across the region at a time of record high tin and tungsten prices.” The company’s approach reflects a methodical re-engagement with a historically significant mining district, leveraging modern exploration techniques to unlock latent potential.
Strategic Positioning in Victoria’s Tin-Tungsten Belt
Dart’s Walwa project complements its broader exploration portfolio, which includes gold and antimony projects in Queensland and Victoria. The company recently completed a major drilling campaign at Coonambula, advancing its regional presence in multi-metal systems. This tin-tungsten push diversifies Dart’s exposure to strategic metals amid evolving market dynamics.
Bottom Line?
Dart Mining’s systematic review of historic tin-tungsten assets positions it to capitalise on soaring metal prices, but the path to economic viability hinges on upcoming drilling and resource modelling.
Questions in the middle?
- How will Dart prioritise drilling targets amid extensive historic datasets?
- Can the McHargs tungsten prospect deliver economically viable grades under current price conditions?
- What role will tantalum and niobium play in enhancing project value?