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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1880 edition. Excerpt: ... tailings contained, and seldom as much as two ounces of gold." Prof. Raymond's Report, 1870, page 364: --"It is impossible to state accurately what percentage of gold is lost in milling, as few assays are made either of the crude ore or of the tailings; but that a very large amount is lost can.not be doubted, and this loss probably varies from thirty to seventy per cent., according to the nature of the ore. None of the silver is saved except a small quantity, which being obtained in the gold, merely diminishes the value of the latter metal." Fossett's Colorado, page 292: --"It is estimated that more gold has been wasted in milling and has been washed down the creeks and gulches than has been saved." Albert Reiehenecker see Appendix, page 80 et seq). "The proportion of gold saved on the plates and tables varies, in a well-constructed mill, between thirty and fifty per cent. of the whole amount of gold in the quartz, and may average forty per cent." Article XII. THE PRESENT CONDITION OF INDUSTRIAL GOLD MINING. It will be apparent from these brief outlines that gold mining as an industrial pursuit encompasses interests of immense importance when the whole field of enterprise is brought into Tiew. The sources of the metal are practically beyond the measure of any method of calculation. The great extent of mineral area, the cosmical profusion displayed in nature with reference to all deposits of useful metals and substances, the expansive surface exploited and depths attained by practical working in widely-varying and separated localities, all tend to demonstrate the number and magnitude of workable veins of gold. In connection with this, it is also apparent that great progress has.been made in structural and...

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In recent decades, gold mining has moved into increasingly remote corners of the globe. Aside from the expansion of industrial gold mining, many countries have simultaneously witnessed an expansion of labor-intensive and predominantly informal artisanal and small-scale gold mining. Both trends are usually studied in isolation, which contributes to a dominant image of a dual gold mining economy. Counteracting this dominant view, this volume adopts a global perspective, and demonstrates that both industrial gold mining and artisanal and small-scale gold mining are functionally integrated into a global gold production system. It couples an analysis of structural trends in global gold production (expansion, informalization, and technological innovation) to twelve country case studies that detail how global gold production becomes embedded in institutional and ecological structures.

ABSTRACT: Industrialized gold mining in western North Carolina arose in the late 1820s and early 1830s in the context of a preindustrial society, prompting North Carolinians to confront the difficult transition from agrarian to industrial worlds. The agrarian character of society presented a series of obstacles to the development of industry, including the limitations of southern capital, a free labor force firmly planted in a preindustrial society, and the inherent dangers of employing slaves in industry. In turn, North Carolinians' solutions to these problems challenged the agrarian traditions of the South, revealing the tensions of a society in flux. Brazil also struggled with the issues of capital, free labor, and slave labor in the 1830s with the industrialization of its gold mines. A comparison of these two regions, simultaneously undergoing similar processes and experiencing similar problems, offers insights into the course of southern industrialization. It suggests the construction of a model of industrialization that recognizes a range of industrializations. On this continuum, North Carolina and the entire South found itself in the middle, combining characteristics of both northern and Latin American industrialization. This position helps to explain the confusion that North Carolinians faced in the attempt to industrialize its gold mining operations.

Gold Ore Processing: Project Development and Operations, Second Edition, brings together all the technical aspects relevant to modern gold ore processing, offering a practical perspective that is vital to the successful and responsible development, operation, and closure of any gold ore processing operation. This completely updated edition features coverage of established, newly implemented, and emerging technologies; updated case studies; and additional topics, including automated mineralogy and geometallurgy, cyanide code compliance, recovery of gold from e-waste, handling of gaseous emissions, mercury and arsenic, emerging non-cyanide leaching systems, hydro re-mining, water management, solid–liquid separation, and treatment of challenging ores such as double refractory carbonaceous sulfides. Outlining best practices in gold processing from a variety of perspectives, Gold Ore Processing: Project Development and Operations is a must-have reference for anyone working in the gold industry, including metallurgists, geologists, chemists, mining engineers, and many others. - Includes several new chapters presenting established, newly implemented, and emerging technologies in gold ore processing - Covers all aspects of gold ore processing, from feasibility and development stages through environmentally responsible operations, to the rehabilitation stage - Offers a mineralogy-based approach to gold ore process flowsheet development that has application to multiple ore types