2008, by Jean-Michel Rendu, SME Customer Service, 8307 Shaffer Parkway, Littleton, CO 80127, phone 800-763-3132, 303-973-9550, fax 303-933-6269, e-mail cs@smenet.org, Web site www. smenet.org, ISBN: 978-0-87335-268-0, pp. 112, Book Order #268-0. 69 dollars SME members, 49 dollars SME student members, 89 dollars nonmembers - Does the material being mined have enough value to be worth processing? Should it be processed immediately or stockpiled? And if multiple processes are available, like heap leaching and milling, which one should be used? A cut-off grade can provide the answers.
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