Art. V. Native Copper.

In Bruce's Journal, (Vol. I. p. 149.) mention is made of a remarkable piece of native copper, found near New-Haven many years ago, and weighing about 90lbs.

We have now to add, (and the fact is, indeed, mentioned in Cleaveland's Mineralogy,) that another piece has been recently found half a mile west of the Hartford turnpike road, opposite the town of Wallingford, and twelve miles from New-Haven. It was turned up in ploughing to repair a road. The country is of the secondary trap formation, and the rocks, at the particular place, are the old red sandstone of Werner, which here occupies the plains, and runs under the trap. The piece weighs almost six pounds; it is fine virgin copper, with rudiments of large octahedral crystals of native copper upon its surface, which is more or less incrusted with green carbonate of copper and ruby oxid, very much resembling that of Cornwall: the ruby oxid is particularly remarkable in the cavities of the piece.

As it was found within three or four miles of the place where the large piece of ninety pounds weight was discovered, and as copper is known to exist in many places in these hills, the facts should be kept in view, and may lead to something of importance.