A coal mine. The mineral list refers to both species identified in the coal and accompanying veins and to various anthropogenic "minerals" formed on a burning coal dump.
Located 2 km SW of Alsdorf and about 13 km NE of Aachen.
References:- Der Aufschluss 1977(2), 70-72
- Blaß, G. and Strehler, H. (1993): Mineralbildungen in einer durch Selbstentzündung brennenden Bergehalde des Aachener Steinkohlenreviers. Mineralien-Welt 4 (4), 35-42. (in German)
- Blaß, G. and Graf, H.-W. (1996): Neue mineralogische Erkenntnisse und neue Funde aus Eifel, Schwarzwald und Siegerland. Mineralien-Welt 7 (2), 55-64. (in German)
- Sindern, S., Warnsloh, J. M., Witzke, T., Havenith, V., Neef, R. & Etoundi, Y. (2005): Mineralogy and geochemistry of vents formed on the burning coal mining waste dump Anna I, Alsdorf, Germany. Eur. J. Mineral. 17, Beih. 1, 130.
- U. Kolitsch and F. Brandstätter (2007): A new salt-inclusion sulphate phase from a burning coal dump: crystal-structural, chemical and Raman-spectroscopic characterisation. 16th Croatian-Slovenian Crystallographic Meeting, Petrčane, Croatia, June 13-17, 2007; Book of Abstracts, 12.
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http://www.strahlen.org/vp/de/anna/
46 entries listed. 44 valid minerals.
