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Publication Detail
Phosphate mineral reactivity: From global cycles to sustainable development
  • Publication Type:
    Journal article
  • Publication Sub Type:
    Conference Proceeding
  • Authors:
    Oelkers EH, Valsami-Jones E, Roncal-Herrero T
  • Publication date:
  • Pagination:
    337, 340
  • Journal:
    Mineralogical Magazine
  • Volume:
  • Issue:
  • Status:
  • Print ISSN:
A survey of the surface-area-normalized dissolution rates of major phosphate bearing minerals shows these rates to vary by >8 orders of magnitude with a general dissolution-rate trend sturvite > britholite ∼ fluoroapatite > variscite > monazite ∼ rhabdophane. This trend reflects the relative strength of the metal-oxygen bonds holding together the phosphate tetrahedra in the mineral structure. Due to the high surface-area-normalized reactivity of fluoroapatite, and the high surface area of natural variscite and rhabdophane, it seems likely that these minerals buffer the concentration of P and the rare-earth elements in many natural waters. As such, the solubility of these minerals plays a significant role in the global phosphorus cycle, and may potentially provide clues for future sustainable phosphorus use. © 2008 The Mineralogical Society.
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