Fig. 7 REE-bearing mineral occurrence of hydrothermal coal deposits. (a) Goyazite, (b) Silicorhabdophane, (c) Rhabdophane, (d) Apatite. Minerals have authigenic forms and halogen-rich compositions (Figure replicated with permission from Elsevier and Rightslink. Dai et al., 2013).

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