Characterization of the rare-earth mineralogy at the Pea Ridge Deposit, Missouri
Advanced Search
Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.

Search our Collections & Repository

For very narrow results

When looking for a specific result

Best used for discovery & interchangable words

Recommended to be used in conjunction with other fields

Dates

to

Document Data
Library
People
Clear All
Clear All

For additional assistance using the Custom Query please check out our Help Page

CDC STACKS serves as an archival repository of CDC-published products including scientific findings, journal articles, guidelines, recommendations, or other public health information authored or co-authored by CDC or funded partners. As a repository, CDC STACKS retains documents in their original published format to ensure public access to scientific information.
i

Characterization of the rare-earth mineralogy at the Pea Ridge Deposit, Missouri

Filetype[PDF-5.34 MB]


Select the Download button to view the document
This document is over 5mb in size and cannot be previewed
English
Details You May Also Like

Details:

  • Personal Author:
  • Corporate Authors:
    United States. Bureau of Mines.
  • Description:
    "Iron ore deposits in south-central Missouri have emerged as a possible resource for the rare-earth elements. The pea ridge iron mine is one such deposit. Rare-earth minerals at the pea ridge iron mine are contained in breccia pipes consisting primarily of silicon oxides and feldspars. These pipes extend up through the magnetite ore body and appear to be alterations and replacement of earlier hematite. The mineralogy of these pipes is very complex and varied, which could complicate the concentration and extraction of the rare- earth minerals. This U.S. Bureau of Mines report represents a study by characterization of the mineral phases to assess the amenability and development of concentration and extraction techniques. Previous characterization of rare-earth minerals has been mainly by transmitted light microscopy. This method along with relected light microscopy, scanning electron microscopy, and x-ray diffraction was used to identify and characterize the rare-earth and associated minerals. The minerals identified were the major ore minerals, magnetite and hematite; the rare-earth phosphates, monazite and xenotime; the rare-earth silicate, allanite; the minor associated minerals, cassiterite, pyrite, and apatite; and the gangue minerals, feldspar, quartz, and actinolit" - NIOSHTIC-2

    NIOSH no. 10008716

  • Subjects:
  • Series:
    Mining Publications
  • Subseries:
    Report of Investigations
  • Document Type:
    Text
  • Genre:
    Report
  • Place as Subject:
    Missouri
  • CIO:
    National Institute for Occupational Safety and Health (NIOSH)
  • Pages in Document:
    9 numbered pages
  • NIOSHTIC Number:
    10008716
  • Resource Number:
    RI 9331
  • Collection(s):
  • Main Document Checksum:
  • Download URL:
  • File Type:

Supporting Files

  • No Additional Files
More +

You May Also Like

Checkout today's featured content at stacks.cdc.gov