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Cordierite from
Stenzelberg, Königswinter, Siebengebirge, North Rhine-Westphalia, Germany

Classification
Species:Cordierite
Formula:(Mg,Fe)2Al3(AlSi5O18)
Confirmation
Validity:Believed Valid
References
References:Brauns, R., (1922): Die Mineralien der Niederrheinischen Vulkangebiete, Schweizerbart, Stuttgart
Data
Mineral Data:Click here to view Cordierite data
Locality Data:Click here to view Stenzelberg, Königswinter, Siebengebirge, North Rhine-Westphalia, Germany
Nearest other occurrences of Cordierite
1.3km (0.8 miles) A Petersberg, Königswinter, Siebengebirge, North Rhine-Westphalia, Germany
2.0km (1.2 miles) B Ölberg (Oelberg), Königswinter, Siebengebirge, North Rhine-Westphalia, Germany
2.7km (1.7 miles) C Wolkenburg, Königswinter, Siebengebirge, North Rhine-Westphalia, Germany
3.3km (2.0 miles) D Drachenfels, Königswinter, Siebengebirge, North Rhine-Westphalia, Germany
3.5km (2.2 miles) E Perlenhardt, Königswinter, Siebengebirge, North Rhine-Westphalia, Germany
5.2km (3.2 miles) F Lyngsberg (Lühnsberg; Lünsberg), Bad Godesberg, Bonn, Siebengebirge, North Rhine-Westphalia, Germany
8.0km (4.9 miles) G Finkenberg, Bonn, Siebengebirge, North Rhine-Westphalia, Germany
24.9km (15.4 miles) H Herchenberg, Burgbrohl, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
29.2km (18.1 miles) I Hüttenberg, Glees, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
30.0km (18.6 miles) J Gleeser Felder, Glees, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
30.4km (18.9 miles) K Nickenicher Sattel (Eicher Sattel), Nickenich, Andernach, Mayen-Koblenz, Rhineland-Palatinate, Germany
31.0km (19.3 miles) L Kappiger Ley (Kappiger Lay), Wehr, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
31.9km (19.8 miles) M Rothenberg, Bell, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
32.9km (20.4 miles) N Nickenicher Weinberg (Nickenicher Sattelberg), Nickenich, Andernach, Mayen-Koblenz, Rhineland-Palatinate, Germany
33.3km (20.7 miles) O In den Dellen quarries, Niedermendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
33.5km (20.8 miles) P Pumice quarries, Wingertsberg, Niedermendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
33.6km (20.8 miles) Q Krufter Ofen, Kruft, Pellenz, Mayen-Koblenz, Rhineland-Palatinate, Germany
34.6km (21.5 miles) R Thelenberg, Niedermendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
34.7km (21.6 miles) S Basalt quarries, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
37.8km (23.5 miles) T Caspar quarry, Bellerberg volcano, Ettringen, Mayen, Mayen-Koblenz, Rhineland-Palatinate, Germany
38.5km (23.9 miles) U Wannenköpfe Quarry, Ochtendung, Maifeld, Mayen-Koblenz, Rhineland-Palatinate, Germany
42.0km (26.1 miles) V Niveligsberg, Drees, Kelberg, Vulkaneifel, Rhineland-Palatinate, Germany
46.5km (28.9 miles) W Bocksberg, Müllenbach, Kelberg, Vulkaneifel, Rhineland-Palatinate, Germany
54.5km (33.9 miles) X Radersberg, Brück, Daun, Vulkaneifel, Rhineland-Palatinate, Germany
57.7km (35.9 miles) Y Kahlenberg, Zilsdorf, Hillesheim, Vulkaneifel, Rhineland-Palatinate, Germany
62.0km (38.6 miles) Z Auf Dickel (incl. Nonnental), Rockeskyll volcanic complex, Rockeskyll, Gerolstein, Vulkaneifel, Rhineland-Palatinate, Germany
65.2km (40.5 miles) 0 Kahlenberg (Auf'm Kopp; Kallenberg), Oberstadtfeld, Daun, Vulkaneifel, Rhineland-Palatinate, Germany
65.4km (40.7 miles) 1 Rother Kopf, Roth, Gerolstein, Vulkaneifel, Rhineland-Palatinate, Germany
67.2km (41.7 miles) 2 Emmelberg, Üdersdorf, Daun, Vulkaneifel, Rhineland-Palatinate, Germany
134.7km (83.7 miles) 3 Schaumberg, Tholey, St Wendel, Saarland, Germany
149.2km (92.7 miles) 4 Linck marble works, Hochstädten, Bensheim, Odenwald, Hesse, Germany
187.9km (116.8 miles) 5 Michelsberg Quarry, Katzenbuckel, Eberbach, Odenwald, Baden-Württemberg, Germany
Mineral and/or Locality  
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