White Cliff Minerals Extends Danvers 3 Copper Mineralisation by 280m with 42m at 1.43% Cu

Danvers 3 Step-Out Drilling Confirms Major Strike Extension

White Cliff Minerals (ASX:WCN) has pushed the boundaries of its Danvers 3 copper system at the Rae Copper Project with a standout 42-metre intercept grading 1.43% copper from 200 metres in diamond drillhole DAN26025. This hole, collared 250 metres northwest of a previously reported high-grade intersection, reveals the mineralised breccia system extends well beyond the initial discovery zone, with multiple internal intervals exceeding 2% copper.

Adding to the scale, DAN26036, drilled over 105 metres west of the original discovery hole, logged 83.1 metres of combined copper sulphides dominated by chalcocite, indicating a strike extension of more than 280 metres for the Danvers 3 system. Meanwhile, DAN26028 confirmed copper mineralisation on the opposite fault boundary, reinforcing the structural complexity and size of the deposit.

Visual Logging Confirms Extensive Copper Over Nearly 10km

Beyond Danvers 3, White Cliff’s regional drilling program has now visually logged copper sulphides over an impressive 9.8-kilometre strike length along the Teshierpi Fault Zone and Danvers structures. Assay results confirm mineralisation across 6.6 kilometres of strike, with recent holes like DAN26031 intersecting chalcocite veining over 4 metres in a greenfield area northeast of Danvers 1.

These findings underscore the Rae Copper Project’s potential as a district-scale copper system, with multiple high-grade targets emerging and a pipeline of over 20 assay results pending. The company currently operates two diamond rigs, systematically infilling and stepping out to refine the geological model and target extensions.

Oriented Core Drilling Sharpens Structural Understanding

White Cliff’s use of oriented diamond core is proving pivotal in unraveling the controls on mineralisation at Danvers 3. Executive Technical Director Eric Sondergaard highlighted that oriented core from DAN26036 intersected chalcocite-rich chaotic and crackle breccias near perpendicular to earlier drilling, providing new structural vectors to guide follow-up drilling.

Oriented core logging has confirmed comparable breccia textures across multiple holes, allowing the company to directly measure sulphide textures and refine the geometry of the high-grade zones. This structural insight will inform the next drilling phase, aiming to test strike and depth extensions where thicker and higher-grade mineralisation is expected.

Historic Resource and Metallurgical Context

The Rae Copper Project includes the historic Danvers resource estimated at 4.16 million tons grading 2.96% copper, though this estimate is not JORC-compliant and requires validation through ongoing exploration. The deposit features a sediment-hosted copper style with breccia and vein systems, supported by metallurgical test work confirming excellent copper and silver recoveries exceeding 90% via conventional flotation.

White Cliff’s ongoing drilling and structural studies aim to enhance confidence in the resource base and support future resource estimations under modern standards.

Next Steps in Rae Copper Exploration

With more than 20 assay results pending and two diamond rigs actively drilling, White Cliff plans to continue stepping out from known high-grade zones at Danvers 3, test strike and depth extensions at Danvers 1, and explore extensions at Danvers 2 and 4. The company’s systematic approach, leveraging oriented core and regional drilling, positions it to unlock further scale and grade improvements across the Rae Copper Project.

As assay batches arrive every 10 to 14 days, the market can expect a steady flow of results that will shape the evolving copper story in Nunavut’s Kitikmeot region.