Zinc of Ireland NL Uncovers Promising Sulphide Zones at Mt Clere, Bolstering SEDEX-Style Base Metal Prospects and Q3 Assay Outlook
Monday, June 30, 2025
at
8:26 am
Zinc of Ireland NL has wrapped up its maiden drilling at Mt Clere, intersecting sulphide-rich zones within a 1km-wide target. Early findings indicate a potential SEDEX-style deposit, with further geophysical assessments and step-out drilling under review.
Zinc of Ireland NL has concluded its maiden diamond drilling campaign at the Mt Clere Project in Western Australia, successfully completing two drill holes totalling 1,139.9 meters at the Robin 21 target. This 1 km-wide geological anomaly is characterized by coincident magnetic responses of 400 nT and gravity readings of approximately 2 mG, and the drill results have intersected multiple sulphide-bearing zones within stratigraphically prospective rock units. Initial field observations from logging, microscopy, and portable XRF testing revealed the presence of base metal sulphides—including chalcopyrite, pyrrhotite, and pyrite—occurring in association with dolerite intrusions and carbonaceous metasediments.
The drilling intersected sulphide mineralisation in several intervals, with visual estimates indicating sulphide abundance as high as 1–2% in some sections. These observations are consistent with Zinc of Ireland NL’s geological model, which anticipates SEDEX-style mineralisation similar to world-class systems such as Sullivan and Ernest Henry. While the company cautions that pXRF field readings are preliminary and not a substitute for accredited laboratory assays, further analyses—including detailed core logging, SEM, and downhole geophysics—are planned ahead, with assay results expected in the third quarter.
This development at the Mt Clere Project, particularly at the previously untested Robin 21 target adjacent to the Mt Clere Fault in a proven copper–base-metal province, marks a significant step forward. Historical drilling by BHP in the 1990s had not successfully intersected the anomaly due to technical issues, making these new results a potentially transformative indicator for the region’s exploration prospects.
Market sentiment appears cautiously optimistic. On the bullish side, the successful intercepts and encouraging technical indicators offer a strong signal for Zinc of Ireland NL’s exploration potential, suggesting that the project could yield a fertile system if laboratory assays confirm the early findings. However, a bearish viewpoint may point to the preliminary nature of the field data and the reliance on visual estimates and pXRF readings, underscoring the need for further laboratory confirmation before investors fully embrace the early promise of the project.