 | | Book (volume) | | Calcite crystals, Marcasite and Pyrite cubes. The area around the confluence of the Loup River with the...jasper and gem petrified wood. BUFFALO COUNTY KEARNEY, area gravel bars and pits along the Platte R...townagate, chalcedony, jasper, petrified wood. CASS COUNTY WEEPING WATER, SE, on rd. to Nehawka, in the Snyderville...chalcedony, jasper, fossils. CHERRY COUNTY VALENTINE, in the Sandhills county along the Niobrara R. and Minnechaduza...wood). CHEYENNE, DEUEL, GARDEN & KEITH COUNTIES AREA, between North and South Platte rivers and in all |  | | Book (volume) | | Two Volumes ® Volume I Gemstones, of all the mineral treasures to be found in North America, are perhaps...Furcron, Chief Geologist of the Department of Mines, Mining and Geology; on the State of Michigan by Robert...furnished by Col. E. M. Barron of the Southern Gem and Mineral Company of El Paso, Texas. Information on the Virgin...Stevens Point, Wisconsin, and by A. L. Mahaffey of Nevada, Missouri. The well-known Texas agate localities...Kobuk jade locality. Descriptions of San Diego County, California, gemstones and the mines in which they |  | | Book (edition) | | of this book appeared in 1925 the nonmetallic mineral industries have changed greatly in nearly all important...greatest strides have been taken in the field of mineral beneficiation. In 1925 we did not hav'e froth...toehniques for examining and (c.sting minerals anmineral products, such as the electron microscope, X-ray...standing, and an associate in various nonmetallic mineral activities. This edition is a dual effort and the...composition ainl properties of the minerals, methods of mining and preparation, market values, extent and nature |
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Luning area, Luning, Fitting Mining District, Mineral County, Nevada, USA