Fig. 7: XRD patterns of the products from hydroxyapatite experiments. | Communications Earth & Environment

Fig. 7: XRD patterns of the products from hydroxyapatite experiments.

From: Magmatic and thermally produced reactive phosphorus 3.2 billion years ago and its implications for early life

Fig. 7

Hydroxyapatite is not present in the Fe-bearing experiments at 1300 °C. Both schreibersite (Fe3P) and barrigerite (Fe2P) or only schreibersite is present in Fe-bearing experiments. Some phases remain unidentified (based on a comparison with entries in the Inorganic Crystal Structure Database (ICSD) database).

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