Phosphate rock can come from sedimentary deposits (i.e., North Africa, the Middle East and the United States), or igneous deposits (i.e., Brazil, Canada, Finland, Russia and South Africa). Sedimentary deposits, which represent 85% of the world’s deposits, are very likely to contain large amounts of impurities, such as heavy metals like cadmium and uranium.
Arianne phosphate comes from an igneous deposit. This type of deposit, which represents 15% of the world’s phosphate rock deposits, generally contains little or no contaminants.