Journal of Materials Science

, Volume 32, Issue 24, pp 6549–6553 | Cite as

Characterization of a natural substituted pyromorphite

  • I. L. Botto
  • V. L. Barone
  • J. L. Castiglioni
  • I. B. Schalamuk


Pyromorphite (Pb5(PO4)3Cl) which occurs in the oxidation zone of a polymetallic Pb–Zn–Ag–Au vein in Paramillos de Uspallata, Mendoza, Argentina, was studied by scanning electron microscopy (including energy dispersive analysis of X-rays (EDAX) electron microprobe), i.r. and Raman spectroscopies and X-ray powder diffraction analysis. The substitution of Pb by Ca and Ba and Cl by OH, respectively, have been detected. In addition, i.r. absorption bands for the CO2-3 ν3-mode have been clearly identified. They are attributed to the CO2-3 for PO-34 substitution in the structure. The composition is regarded as an indication of the paragenesis of the host rocks and the mineralogy of the deposit.


Apatite Argentina NASH Galena Mineral District 


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Copyright information

© Chapman and Hall 1997

Authors and Affiliations

  • I. L. Botto
    • 1
  • V. L. Barone
    • 2
  • J. L. Castiglioni
  • I. B. Schalamuk
  1. 1.Quimica Inorganica, CEQUINOR, Facultad de Ciencias ExactasUniversidad Nacional de La PlataLa PlataArgentina
  2. 2.INREMI, Facultad de Ciencias Naturales y MuseoUniversidad Nacional de La PlataLa PlataArgentina

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