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.
• Corporate Authors:
  United States. Bureau of Mines
• Description:
  The 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 concentrates. 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. Beneficiation studies were performed on these concentrates to recover individual mineral products. Gold was recovered by amalgamation; platinum-group metals and radioactive minerals by flotation; magnetite, ilmenite, and chromite by magnetic and high- tension separation techniques. [Description provided by NIOSH]
• Subjects:
  Metals, Heavy Mining Occupational Health Safety
• Series:
  Mining Publications
• Subseries:
  Report of Investigations
• ISSN:
  1066-5552 (print)
• Publisher:
  United States. Bureau of Mines
• Document Type:
  Text
• Genre:
  Case Report
• Place as Subject:
  California ; OSHA Region 9
• Rights:
  Public Domain
• 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:10006910
• Federal Fiscal Year:
  1980
• Peer Reviewed:
  False
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:5433e5e540af9bfa8bc026382857180614fb7958ba0c287cbc5c655a9fda80ea641e43c75e24ffc8c353650e6156f469b1e0f44ffd43e59450716c7878162c49
• Download URL:
  https://stacks.cdc.gov/view/cdc/201823/cdc_201823_DS1.pdf
• File Type:
  [PDF - 839.35 KB ]