Characterization of a natural substituted pyromorphite
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...
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| Autores principales: | , , , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
1997
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| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/133953 |
| Aporte de: |
| Sumario: | 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. |
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