Underground Treasures: How and Where to Find Them / A Key for the Ready Determination of All the Useful Minerals Within the United States

by James Orton

62.—Silver.

Occurs in masses, or strings and threads penetrating rocks and native copper and galena; metallic lustre; tarnishes grayish black; can be cut in slices and hammered out; dissolved in muriatic acid, it turns black on exposure; gravity 10.

Localities.—Chiefly found with copper near trap-rocks, and in fine grained galena and dark brown blende. Gold contains from one to fifteen per cent. Bridgewater, N. J.; Davidson and Stanley Counties, N. C.; Lake Superior Region; Poorman’s Lode, Idaho; Comstock Lode and Montezuma Ledge, Nev.; Alpine County and Maris Vein, Cal.; Clear Creek County, Col.