Ref.:
Hochleitner, R. & Fehr, K. T. (1996): Mischkristall-Beziehungen natürlicher Segnitit-Plumbojarosit-Kintoreit-Mischkristalle aus Portugal. Eur.J.Min., 8, 109.
Ref.: http://www.strahlen.org/vp/pt/gestoso/
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