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Ingot

Once the copper has been mined, the impurities are removed. The refined copper is then smelted into smaller manageable bars. The “NK” on the surface stand for Nkana, which is...

Bowl

This copper bowl was one of thirty bowls made at the mine to be presented to the late Queen Mother who visited Nkana in 1957. This particular example was rejected....

Malachite and azurite

Donated by Mr SS Bastard. Collected at East Wheal Russel Mine near Tavistock. Copper occurs as green malachite and blue azurite in this specimen. Both minerals form through weathering of...

Copper

Native copper with copper oxide donated by William Charles Grant in 1880....

Copper

Native copper collected at the Lizard, Cornwall and donated by Mrs Berger in 1884....

Copper

Native copper appears to be on matrix of fine grain crystalline gypsum giving some doubt as to whether it comes from this locality. Recorded in accessions register as ‘Native copper....

Copper

Native copper donated by Mrs Berger in 1884....

Copper

Native copper collected at the Lizard, Cornwall and donated by Mrs Berger in 1884....

Copper

Native spongiform joint-filling copper donated by Mr Treffry. Recorded in register as‘Native Copper weight 2 lb 13 oz. Clifford Amalgamated Mine Gwennap Cornwall’....