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Cordierite from
Thelenberg, Niedermendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany

Classification
Species:Cordierite
Formula:(Mg,Fe)2Al3(AlSi5O18)
Confirmation
Validity:Believed Valid
References
References:Nöggerath, J., Das Gebirge in Rheinland-Westfalen, Bonn, 3. Band, S.286, 1824
Data
Mineral Data:Click here to view Cordierite data
Locality Data:Click here to view Thelenberg, Niedermendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
Nearest other occurrences of Cordierite
0.6km (0.4 miles) A Basalt quarries, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
1.3km (0.8 miles) B Pumice quarries, Wingertsberg, Niedermendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
2.0km (1.2 miles) C In den Dellen quarries, Niedermendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
3.4km (2.1 miles) D Krufter Ofen, Kruft, Mayen-Koblenz, Rhineland-Palatinate, Germany
3.6km (2.2 miles) E Rothenberg, Bell, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
4.1km (2.6 miles) F Caspar quarry, Bellerberg volcano, Ettringen, Mayen, Mayen-Koblenz, Rhineland-Palatinate, Germany
4.7km (2.9 miles) G Gleeser Felder, Glees, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
5.8km (3.6 miles) H Nickenicher Weinberg (Nickenicher Sattelberg), Nickenich, Andernach, Mayen-Koblenz, Rhineland-Palatinate, Germany
6.0km (3.7 miles) I Hüttenberg, Glees, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
6.0km (3.8 miles) J Kappiger Ley (Kappiger Lay), Wehr, Rhineland-Palatinate, Germany
6.4km (4.0 miles) K Nickenicher Sattel (Eicher Sattel), Nickenich, Andernach, Mayen-Koblenz, Rhineland-Palatinate, Germany
9.7km (6.0 miles) L Herchenberg, Burgbrohl, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
10.3km (6.4 miles) M Wannenköpfe Quarry, Ochtendung, Maifeld, Mayen-Koblenz, Rhineland-Palatinate, Germany
19.8km (12.3 miles) N Niveligsberg, Drees, Kelberg, Vulkaneifel, Rhineland-Palatinate, Germany
25.3km (15.7 miles) O Bocksberg, Müllenbach, Kelberg, Vulkaneifel, Rhineland-Palatinate, Germany
31.6km (19.6 miles) P Drachenfels, Königswinter, Siebengebirge, North Rhine-Westphalia, Germany
32.0km (19.9 miles) Q Wolkenburg, Königswinter, Siebengebirge, North Rhine-Westphalia, Germany
32.5km (20.2 miles) R Lyngsberg (Lühnsberg; Lünsberg), Bad Godesberg, Bonn, Siebengebirge, North Rhine-Westphalia, Germany
32.6km (20.3 miles) S Perlenhardt, Königswinter, Siebengebirge, North Rhine-Westphalia, Germany
33.4km (20.8 miles) T Ölberg (Oelberg), Königswinter, Siebengebirge, North Rhine-Westphalia, Germany
33.7km (21.0 miles) U Radersberg, Brück, Daun, Vulkaneifel, Rhineland-Palatinate, Germany
34.3km (21.3 miles) V Petersberg, Königswinter, Siebengebirge, North Rhine-Westphalia, Germany
34.6km (21.5 miles) W Stenzelberg, Königswinter, Siebengebirge, North Rhine-Westphalia, Germany
38.8km (24.1 miles) X Kahlenberg, Zilsdorf, Hillesheim, Vulkaneifel, Rhineland-Palatinate, Germany
40.2km (25.0 miles) Y Finkenberg, Bonn, Siebengebirge, North Rhine-Westphalia, Germany
41.7km (25.9 miles) Z Emmelberg, Üdersdorf, Daun, Vulkaneifel, Rhineland-Palatinate, Germany
42.0km (26.1 miles) 0 Kahlenberg (Auf'm Kopp; Kallenberg), Oberstadtfeld, Daun, Vulkaneifel, Rhineland-Palatinate, Germany
43.6km (27.1 miles) 1 Auf Dickel (incl. Nonnental), Rockeskyll volcanic complex, Rockeskyll, Gerolstein, Vulkaneifel, Rhineland-Palatinate, Germany
48.2km (29.9 miles) 2 Rother Kopf, Roth, Gerolstein, Vulkaneifel, Rhineland-Palatinate, Germany
101.0km (62.7 miles) 3 Schaumberg, Tholey, St Wendel, Saarland, Germany
124.0km (77.0 miles) 4 Linck marble works, Hochstädten, Bensheim, Odenwald, Hesse, Germany
162.7km (101.1 miles) 5 Michelsberg Quarry, Katzenbuckel, Eberbach, Odenwald, Baden-Württemberg, Germany
233.2km (144.9 miles) 6 Clara Mine, Rankach valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany
Mineral and/or Locality  
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