The Anaconda Copper Mine was a large coppermine in Butte. It was bought in 1881 by Marcus Daly, who developed it in partnership with George Hearst, father of William Randolph Hearst, and James B. Haggin and Lloyd Tevis of San Francisco. From this beginning grew the Anaconda Copper Mining Company, a global mining enterprise featuring the Anaconda and other Butte mines, a smelter at Anaconda, Montana, processing plants in Great Falls, Montana, the American Brass Company, and many other properties, mostly in the United States and Chile.
The Anaconda mine itself was closed in 1947 after producing 94,900 tons of copper. Its location has been consumed by the Berkeley Pit, a vast open-pit mine.
The Anaconda copper mine appeared in Don Rosa's The Life and Times of Scrooge McDuck (Part 4). Where Scrooge became owner of the whole mine as a result of a little known law stating that the whole of an ore body belongs to the one who owns the land where the body is closest to the surface. Don Rosa had, by his own statement, based this story on an actual incident in the history of the Anaconda mine.
Soon the AnacondaCompany would take control of the "Richest Hill on Earth," and with it the Butte newspapers and other dailies across the state.
To friend and foe alike, those dailies became known simply as the "Company papers." Essentially what was good for the AnacondaCompany became what was good for Montana in the reporting that appeared in papers statewide.
The Company divested itself of its newspapers in 1959, but Swibold in his epilogue critiques the lingering effects that its dominance continues to have on Montana to this day.
The principal ores of copper are the oxides cuprite and melaconite, the carbonates malachite and chessylite, the basic chloride atacamite, the silicate chrysocolla, the sulphides chalcocite, chalcopyrite, erubescite and tetrahedrite.
Henry Wilde, in 1875, in depositing copper on iron printing-rollers, recognized this principle and rotated the rollers during electrolysis, thereby renewing the surfaces of metal and liquid in mutual contact, and imparting sufficient motion to the solution to prevent stratification; as an alternative he imparted motion to the electrolyte by means of propeller blades.
Copper arsenate is similar to cupric phosphate, and the resemblance is to be observed in the naturally occurring copper arsenates, which are generally isomorphous with the corresponding phosphates.