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Kruijenite, Ca4Al4(SO4)F2(OH)16·2H2O, a new mineral with microporous structure from the Eifel paleovolcanic region, Germany | Chukanov, Nikita V. | 2019 | |
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Der Feuerberg : "Gläser, Sand und neue Zähne" | Schüller, Willi / 1955-; Engelhaupt, Bernd / 1946- |