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Assay results have indicated that the mine has more than one million tons of 27 percent lead ore, 45 percent zinc and 1 to 7 percent gold.
He raised a few hundred tons of "coloured lead ore" but gave up the work in the 1850s.
Lead ore was the main focus of the mining in the area although some zinc and silver were also produced as a by-product.
The mine produces lead ore, which Redled converts into lead ingot and sells to gasoline refineries located in southern and eastern Texas.
The sanctions resolution targets North Korea's primary exports, including coal, iron, iron ore, lead, lead ore and seafood.
diplomat said North Korea had been expected to earn an estimated $251 million from iron and iron ore in 2017, $113 million from lead and lead ore and $295 million from seafood.
United Nations, Dhu-Al-Qa'dah 13, 1438, Aug 05, 2017, SPA -- A U.S.-drafted United Nations Security Council resolution aims to slash by a third North Korea's $3 billion annual export revenue by banning the country's trade of coal, iron, iron ore, lead, lead ore and seafood, a council diplomat said on Friday, Reuters reported.
"Nenthead is receiving due recognition of its important place in the history of zinc and lead ore extraction," said the society spokesman.
Dukesfield was a huge lead smelting mill for about 150 years, processing lead ore from North Pennines carried on the backs of pack ponies to be turned into lead to be then transported by ponies and carts to the River Tyne at Blaydon.
Between these clusters of mock diamonds, and sticking to them promiscuously, there are often lead ore, black jack, pyrites, or sulfur, and spar, shot also into prismatic, cubic or other figures; and besides these clusters of grotesque figures, which grow out of ne another, and are, as it were, piled upon one another, the whole inside of the cavern is, sometimes, most magnificently adorned with the most wildly grotesque figures which grow upon, and branch out of, one another, in a manner not to be described, and with all the gay and splendid colors of the polished gold, of the rainbow, and of the peacock's tail; and all these blended together, and the masses reflecting all the beauty of such an assemblage of gaudy colors.
The biggest metals producer is Tsumeb Corporation, a wholly owned subsidiary of Gold Fields Namibia (CFN), which operates Namibia's only smelting complex, processing copper and lead ore from mines at Tsumeb and Kombat in the north and toll-refining ore from other producers.
China's trade with North Korea, despite showing a monthly pickup, has witnessed a decline since a round of UN bans came into force early in September and banned Pyongyang from selling coal, iron ore, lead, lead ore and seafood abroad.