 | | Book (volume) | | to Djg, Pan and Mine Your Own Gen1s & Minerals Where & I-low to 1-Iunt for Treasure From rubies, opals...opals and gold to emeralds, diamonds and aquamarine, each regional volume in the four-book Treasure 1-hmter's...Mat/ins, P.G. This book is for: • Rockhounds • Gold prospectors • Gem collectors • Gemologists • Tourists...vacation stops at a roadside "dig your own" gem mine. Junior finds a sapphire the size of a p ach and...interested in the "hidden treasure map through mosquito-infested no-man's-land" approach to treasure hunting but |  | | Report (volume) | | metallic values from the ores of copper, zinc, lead, gold, silver, graphite, molybdenum, mercury, etcetera...Canada THE MINES HANDBOOK Meeting tbe Needs of Mine and Smelter Hundreds of plants on both American...(all types) Crushers Crushing Rolls NEW YORK Mine Pumps Oil Engines Sampling Machinery Screens Stamp...all the metals, and a corresponding expansion of mine work. The MINES HANDBOOK will hereafter be published...Tuckahoe, N. Y., April, 1920. Vll THE MINES MINE HOISTS HANDBOOK AND Years of experience in building |  | | Report (volume) | | metallic values from the ores of copper, zinc, lead, gold, silver, graphite, molybdenum, mercury, etcetera...California. THE MINES HANDBOOK, 1922 MACHINERY FOR MINE • MILL SMELTER Embodying recent developments...Compressor NEW YORK Crushing Rolls Air Compressors Mine Pumps Ball Mills Blast Furnaces Oil Engines Screens...considered to be working the public and not the mine. Many suspicious promotions are however not positively...Copper Copper Imports 43"45 45 45 45 45 46 46 46 Gold: — Production tables etc 47 Iridium :— See 57 |  | | Report (Issue volume) | | accumulating steadily since 1853, when the first mine (a coal property) was developed. Actually it antedates...about 1860 that State-wide prospecting, at first for gold, was well underway. The early published references...Occurrences Gallium Occurrences Germanium Occurrences Gold Occurrences, lode .. Occurrences, placer ........................ . Lode gold ..................................... . Lode gold-Stevens County ........................ . Placer gold ................................... . Iron ............................ |  | | Journal (volume) | | centers of the state; exhibits of minerals, rocks, mine models, etc.; a service laboratory for the determination...47 Barium, by W, B. Winston 85 Penn Mine Slag Dump and Mine Water, Calaveras County, fornia, by Frank...La Joya mine, Napa County 1. Geologic 2. Underground workings map of of La Joya mine, Napa County...Geologic Densmore mine, Tuolumne County 5. A, Harvard mine, Tuolumne County. mine, 7. 8. In pocket...publicity, are seeking information on elementary gold placer mining and the placers where they may profitably |
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