The Providence Journal, And Town And Country Advertiser

Communication.

The Chemical Society of Philadelphia, besides a variety of other minerals, from different parts of the United States, have lately received a specimen of the golden ore or auriferous pyrites, from Virginia, from ten penny weights of which, three grains of gold, 4 carats, have been extracted.

A quantity of manganese has been sent to the Society, from the county of Albemarle, where it is found in abundance. This mineral now retails in Philadelphia at the rate of eleven pence per pound. It is consumed in this country principally by potters. It is used in Europe in bleaching, and in the manufacture of glass.

A variety of the sulphate of barytes, called Lapis hepaticus, accurately described by Cronstedt, as the Jeberstein or liverstone of the Germans and Swedes, has also been forwarded to the Society from the same place.

This mineral almost always accompanies the best metallic ores, and is considered by mineralogists as a happy presage of finding them. According to the celebrated Scheerer, it is a certain indication; aut praesentis, aut futuri metalli.

It is hoped, that the importance of mineral substances in agriculture and manufactures, will induce the farmers, and other gentlemen of the United States, to attend to the mineral products of their fields, and send them to the Chemical Society of Philadelphia, and they will be accurately analyzed free of expense. By this means many valuable discoveries may be made, and we may become acquainted with the operations of nature, in this part of the globe.