Recovery of heavy minerals from Alabama sand and gravel operations.
Sullivan GV; Browning JS
Tuscaloosa, AL: U.S. Department of the Interior, Bureau of Mines, TPR 22, 1970 Mar; :1-14
The Bureau of Mines studied 25 samples from 15 Alabama sand and gravel operations to determine their heavy mineral content. All of the samples contained some heavy minerals (4 to 188 pounds per ton), and 80 percent contained 20 or more pounds of heavy minerals per ton of sand and gravel. Valuable heavy minerals, in order of decreasing amounts, were ilmenite, kyanite, zircon, rutile, and monazite. Large-scale concentration tests were made on samples from three of the state's major producers.
Gravel; Sand; Minerals; Industries; Recovery; Purification; Gravity; Sampling; Distillation; Ores; Metal sources; Titanium; Silicates; Zirconium; Oxides; Separation; Heavy minerals; Ilmenite; Kyanite; Zircon; Rutile; Monazite; Heavy mineral analysis
NTIS Accession No.
Tuscaloosa, AL: U.S. Department of the Interior, Bureau of Mines, TPR 22