Report of Investigations 8471: Recovery of Byproduct Heavy Minerals from Sand and Gravel Operations in Central and Southern California

Details

• Personal Author:
  Gomes, John M. ; Martinez, George M. ; Wong, Morton M.
• Description:
  The federal Bureau of Mines has investigated the occurrence and recovery of byproduct heavy minerals from sand and gravel operations as a means of assessing the nation's resources. Sand samples from 63 locations in central and southern California were treated to yield heavy mineral concentrations. The mineral compositions of the concentrates were characterized by chemical and mineralogical examinations. Additional large quantities of concentrates were prepared from selected deposits that contained significant quantities of heavy minerals. Beneficiation studies were performed on these concentrates to recover individual mineral products. Gold was recovered by amalgamation; platinum-group metals and radioactive minerals were recovered by flotation; and magnetite, ilmenite, and chromite were recovered by magnetic and high-tension separation techniques. [Description provided by NIOSH]
• Subjects:
  Minerals Mining Occupational Health Safety
• Series:
  Mining Publications
• Subseries:
  Report of Investigations
• Document Type:
  Text
• Genre:
  Report
• Place as Subject:
  California ; OSHA Region 9
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  RERC - Reno Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  24 pdf pages
• NIOSHTIC Number:
  nn:10008459
• Citation:
  Proc Mineral Resource Potential of California Conf Sacramento 1980 Mar; :54-70
• Federal Fiscal Year:
  1980
• Peer Reviewed:
  False
• Source Full Name:
  Proc. Mineral Resource Potential of California Conf., Sacramento, Mar. 27-28, 1980, PP. 54-70
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:7dc847c09aedf140bc731323e8446b4703641ae07d6ad9e7b7238120dab30b8f7dcaa9b938d34d035f87873a0fe7fec262d5d13dcaf290925445e82b6de3b57d
• Download URL:
  https://stacks.cdc.gov/view/cdc/236486/cdc_236486_DS1.pdf
• File Type:
  [PDF - 168.02 KB ]