Caspin Resources has identified an 800-metre tungsten soil anomaly at Taylors Hill, where historical drilling returned high-grade tin and tungsten intersections. The results broaden the Bygoo Project beyond its established tin focus, although the strongest evidence remains untested historical data.
- 3.0m at 3.69% WO3 and 0.39% Sn in historical drilling
- 800-metre tungsten soil anomaly at Taylors Hill
- Fordes Gossan rock chips returned up to 0.33% WO3 and 1.77% Sn
- Historical drilling has not been followed up with modern work
- Kelpie resource update remains scheduled for late September
Historical Drilling Reveals Tungsten Grades at Taylors Hill
Caspin Resources Limited (ASX:CPN) has uncovered what it describes as the first high-grade tungsten opportunity recognised at its Bygoo Tin Project in New South Wales, with old drilling at Taylors Hill returning a standout 3.0-metre interval at 3.69% WO3 and 0.39% tin from 44.2 metres.
The broader historical intersection measured 10.6 metres at 1.07% WO3 and 0.12% tin. A second hole returned 12.2 metres at 0.11% WO3 and 0.68% tin, including 1.5 metres at 0.20% WO3 and 3.20% tin. Those results came from three holes drilled by Magnum Explorations in the early 1970s beneath historical workings and have never been followed up with further drilling.
Modern soil sampling has added a more recent signal: a tungsten anomaly extending for more than 800 metres, with a peak value of 34.6 parts per million against a reported background of 3 parts per million. The historical holes sit within that anomaly, which follows northeast-southwest trending faults near the Ardlethan granite contact.
Fordes Gossan Adds a Second Tin-Tungsten Target
At the nearby Fordes Gossan prospect, Caspin’s rock-chip sampling has also returned tin and tungsten mineralisation at surface. One sample graded 0.33% WO3 and 1.7662% tin, alongside antimony, bismuth and copper, while another returned 0.12% WO3 and 2.0139% tin.
Caspin says the gossanous, brecciated sediments may be consistent with the potential for breccia-pipe-hosted mineralisation, although that interpretation remains an exploration hypothesis rather than a defined resource. The company has also noted that tungsten-bearing zones occurred in lodes at the historic Ardlethan Tin Mine, which sits adjacent to the broader Bygoo ground but is excised from Caspin’s exploration licence.
Follow-Up Work Must Convert Old Results Into Modern Evidence
The discovery expands Caspin’s exploration lens from tin into tungsten, a metal the company says has risen sharply in value following Chinese mining and export restrictions. Caspin’s managing director Greg Miles said tungsten could provide a complementary opportunity because tin and tungsten may occur within related mineral systems, and because potential wolframite recovery could use a flowsheet similar to the one proposed for the Kelpie deposit.
There are important qualifications. The Taylors Hill intersections are historical, with incomplete records for sampling, assay methods and recovery. Caspin also says the locations of the old drill collars carry uncertainty, potentially as much as 200 metres, and the true widths of the mineralisation are unknown. Recent rock-chip assays from Taylors Hill and Ardlethan South are still pending.
The immediate program is expected to include more soil and rock-chip sampling, mapping and potentially geophysics before drill targets are finalised. That work will run alongside resource-extension drilling at Kelpie, where the company says a resource update remains on schedule for late September. The key test for the new tungsten story will be whether modern drilling can reproduce the historical grades at accurately located holes and establish continuity beyond isolated intervals.
Bottom Line?
Taylors Hill offers Caspin a potentially valuable second metal story, but its significance depends on confirming historical grades and collar locations through modern exploration.
Questions in the middle?
- Can modern drilling confirm the historical Taylors Hill tungsten and tin intersections?
- Will the 800-metre soil anomaly translate into continuous mineralisation at depth?
- Could tungsten become a material component of Bygoo’s future resource and processing plans?