Golden Deeps is now conducting a detailed Induced Polarisation (IP)–Resistivity survey at its Graceland Prospect in northern Namibia’s Otavi Mountain Land, following another round of spectacular channel-sampling results that confirm the area’s potential to host a Tsumeb-style polymetallic deposit.
The latest assays from the Gossan 1 East outcrop have returned extraordinary grades, including up to 42.7% copper, 1,353 grams per tonne silver and 201 grams per tonne germanium, along with high levels of antimony, lead, and zinc.
These results, said to be among the best recorded in the region in recent years, reinforce Graceland’s status as a major new discovery within Namibia’s most mineralised geological belt.
“The latest channel sampling results from Gossan 1 East have again demonstrated significant thicknesses of exceptionally high-grade copper-silver-zinc-lead-germanium-antimony mineralisation, with the same geological signature as the neighbouring Tsumeb mine,” said Chief Executive Officer Jon Dugdale.
The new assays highlight several rich zones within the Gossan 1 East structure, including 3.5 metres at 12.6% copper, 79 g/t silver and 403 g/t antimony, with one section returning 1.5 metres at 27.6% copper and 140 g/t silver.
Another channel recorded two metres at 16.2% copper, 442 g/t silver and 53 g/t germanium, with a half-metre interval assaying an exceptional 1,353 g/t silver and 70 g/t germanium.
Additional sections returned three metres at 9.2% copper and 135 g/t silver, and 2.5 metres at 8.3% copper and 201 g/t silver from nearby sampling lines.
These spectacular grades confirm the mineralised continuity along the 400-metre-long fault zone that links Gossan 1 East with the earlier Gossan 1 discovery, where previous sampling produced three metres at 11.2% copper, 294 g/t silver and 45 g/t germanium.
The consistency of mineralisation across multiple gossan zones suggests that the copper-silver system could extend significantly below surface.
Located just 20 kilometres north of Graceland, the historic Tsumeb Mine remains one of the world’s great polymetallic deposits, having produced 27 million tonnes grading 4.3% copper, 10% lead, 3.5% zinc, 95 g/t silver and 50 g/t germanium.
Geological similarities between Tsumeb and Graceland are striking. Both show strong fault control, brecciated carbonate host rocks, and multi-metal mineralisation dominated by copper sulphides such as chalcocite (Cu₂S) and secondary copper carbonates malachite and azurite.
“The Graceland outcrops display the same structural and geochemical fingerprints that made Tsumeb world-famous,” Dugdale said. “We are seeing evidence of extensive hydrothermal alteration and faulting that could point to a much larger mineralised system below the surface.”
The Induced Polarisation and Resistivity survey now underway is designed to detect both shallow and deeper sulphide bodies beneath the gossans.
This work will cover the entire 2.5-kilometre mineralised corridor, where extensive soil and rock-chip anomalies have already been mapped.
The company aims to define drilling targets that could reveal Tsumeb-type high-grade copper-silver-lead-zinc-germanium-antimony orebodies extending to depths of up to 300 metres.
Several drilling contractors have been shortlisted, and final negotiations will begin once the IP data is modelled and interpreted.
“Our focus now is on imaging what lies beneath these spectacular surface gossans,” Dugdale said. “The IP data will help us pinpoint sulphide-rich zones for drilling, which could confirm a major new critical-metals discovery.”
Graceland lies within the Otavi Mountain Land, a globally significant belt renowned for its high-grade polymetallic deposits, including Tsumeb and Kombat.
The region has historically yielded millions of tonnes of ore rich in copper, lead, zinc, and precious metals, and is now at the centre of renewed interest driven by global demand for critical minerals.
Golden Deep’s results at Graceland build on Namibia’s growing reputation as a critical-metals frontier, offering geological diversity and a mining-friendly policy environment.
The Otavi belt’s proximity to existing infrastructure, including smelters, rail, and ports, further enhances its development potential.
The Graceland discovery comes at a time when the world is scrambling for new sources of copper, silver, germanium and antimony — all vital inputs for the green energy and semiconductor industries. Following China’s export restrictions on germanium and gallium in 2024, Namibia’s mineral wealth is increasingly viewed as strategically important.
If the IP survey and forthcoming drilling confirm the scale suggested by surface sampling, Graceland could represent one of the most significant new copper-silver-germanium finds in southern Africa in recent decades. “Every indication so far points to a system of considerable depth and grade,” Dugdale said. “Graceland has the potential to become a modern counterpart to Tsumeb — and to play a pivotal role in Namibia’s emergence as a critical-metals powerhouse.”
