George B. Clark
Contributor
Professor of Mining Engineering, Colorado School of Mines, Golden, 1976β84. Coauthor of Elements of Mining.
Primary Contributions (1)
Mining, process of extracting useful minerals from the surface of the Earth, including the seas. A mineral, with a few exceptions, is an inorganic substance occurring in nature that has a definite chemical composition and distinctive physical properties or molecular structure. (One organicβ¦
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