Cumberland, Rhode Island, USA (Valley Falls) (Ashton) (Cumberland Hill)
1842 - COPPER MINE IN RHODE ISLAND

A rich Copper Mine has been opened at Cumberland, R. I. - Within the last week fifteen tons of ore have been shipped for Boston, from the mine, commenced this season, and worked by four men only. The ore was sent to Liverpool to be sold at the monthly mart of ore at Swansea. There is not a single furnace for copper in North America. The ore, from Chili, the grey oxide, which is the richest in the world, yielding 80 per cent, is sent exclusively to Swansea. The Boston American says that an analysis of the ore from Cumberland, gave for the richest specimens, 57 per cent, for the poorest, 5 per cent. The average about 13 per cent. The best Cornwall mines give an average of only ten per cent. The Strafford mines in Vermont, which were worked some years with profit, until the vein ran out, gave an average of five per cent.

The Evening Post
New York, New York
October 25, 1842

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