Einführung in die Sammlung fester mineralischer Rohstoffe, von Prof. Dr. Ludwig Baumann und Dr. Wolfgang Weber, Bergakademie Freiberg - Sektion Geowissenschaften, das Titelbild zeigt die Zonare Erzstruktur mit Sphalerit (Schalenblende), Melnikow-Pyrit, Markasit und Galenit (Aachen - Standort: Vitrine A 3); S. 48
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