PHYSIOGRAPHY. 65 



Native Copper Native Gold. 



2. It is found in beds and veins, and is associated with various other 

 ores of copper, and sometimes with ores of iron; also loose in the soil, 

 and in water-worn fragments. 



3. Native Copper has been more frequently met with, than any of the 

 other metals in their native state. It occurs in beds at Herrengrund, 

 Schmolnitz, and Gb'llrietz ; also at Moldawa, Saska and Orawitza, in the 

 Bannat of Temeswar ; probably in the same manner in Siberia, from 

 whence the largest and most distinct crystals of the general shape of the 

 cube have been brought, engaged in granular limestone. It occurs 

 likewise in beds, in bituminous marl-slate, at Camsdorf inThuringia, and 

 in the county of Mansfield, and in Chessy near Lyons. In veins, it is 

 met with in considerable quantities, in many of the mines near Redruth 

 in Cornwall. Native Copper, crystallized in beautiful icositetrahedrons, 

 occurs in amygdoloid, accompanied by Chabasie, in Nelsoe, one of the 

 Faroe islands. Native Copper has often been found in detached masses, 

 throughout North America, particularly in Illinois, Michigan, and the 

 North Western Territory. About thirty miles south from Lake Supe- 

 rior, on the west bank of the river Ontanawgaw, exists a serpentine rock, 

 thickly interspersed with this species.* It has particularly abounded 

 throughout the greenstone trap and red sandstone formation of Massa- 

 chusetts, Connecticut and New Jersey ; having been found at Schuy- 

 ler's mine, (N.Jersey,) at Bristol, near New Haven, (Conn.) and at Deer- 

 field, (Mass.) 



What has been called copper of cementation, is the metal precipitated 

 from its solution in sulphuric acid by metallic iron. It is produced at 

 Herrengrund and Schmolnitz in Hungary, and in Cornwall. 



4. Copper, in its uses, is too well known to require an enumeration of 

 them. 



NATIVE GOLD. Gold Melacone- Metal. 

 Primary form. Regular octahedron. 

 Secondary forms. 



1. 2. 



Primary, with angles truncated. Cube. 



Matto G rosso, Brazil. Trjnsylvania. 



* The cabinet of Yale College contains a piece from this river, which 

 weighs 137 pounds. A single mass, believed to weigh a ton, still occu- 

 pies the bed of the river. 



6* 



