Letter | Published:

Pyrochlore Minerals as a Potential Source of Reactor-grade Niobium

Nature volume 204, pages 867868 (28 November 1964) | Download Citation

Subjects

Abstract

FOR many years the chief source of niobium has been the mineral ‘columbite’, a member of the columbite–tantalite series (Fe, Mn) (Nb Ta)2O6. As the name of the series implies, niobium (columbium) and tantalum occur in varying ratios, but even at the columbite end the proportion of tantalum is still appreciable, the ratio of niobium to tantalum being generally of the order of only 6 : 1.

Access optionsAccess options

Rent or Buy article

Get time limited or full article access on ReadCube.

from$8.99

All prices are NET prices.

References

  1. 1.

    , and , Proc. Second Intern. Conf. Peaceful Uses At. Energy, 4, 327 (United Nations, Geneva, 1958).

  2. 2.

    , , and , Dana's System of Mineralogy (seventh edit.), 1, 749 (John Wiley and Sons, Inc., New York, 1944).

  3. 3.

    , Verh. Kon. Nederl. Geol. Mijnb. Genoot., Geol. Ser., 22, (1963).

  4. 4.

    , Colon. Geol. Min. Res., 5, 174 (1955).

  5. 5.

    , and , Anal. Chim. Acta. 22, 462 (1960).

  6. 6.

    , Temescal Metallurgical Corp., Berkeley, Calif. (private communication).

Download references

Author information

Affiliations

  1. Warren Spring Laboratory, Stevenage, Herts.

    • J. M. BAKES
    • , P. G. JEFFERY
    •  & J. SANDOR

Authors

  1. Search for J. M. BAKES in:

  2. Search for P. G. JEFFERY in:

  3. Search for J. SANDOR in:

About this article

Publication history

Published

DOI

https://doi.org/10.1038/204867b0

Comments

By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.