Ferroberaunite, Fe.sup.2+./sup.Fe.sub.5./sub..sup.3+./sup.(PO.sub.4./sub.).sub.4./sub.(OH).sub.5./sub.·6H.sub.2./sub.O, a mixed-valence iron member of the beraunite series, from the Gravel Hill mine, Perranzabuloe, Cornwall, England

Tvrdý, J., Plášil, J., Vrtiška, L., Sejkora, J., Škoda, R., Dolníček, Z., Petr, M., Veselovský, F. Ferroberaunite, Fe²⁺Fe₅³⁺(PO₄)₄(OH)₅·6H₂O, a mixed-valence iron member of the beraunite series, from the Gravel Hill mine, Perranzabuloe, Cornwall, England. Mineralogical Magazine. 2022, 86(3), 363-372. ISSN 0026-461X. E-ISSN 1471-8022. Dostupné z: doi: 10.1180/mgm.2022.15.