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Tridymite from
Winfeld, Northern Lava flow, Bellerberg volcano, Ettringen, Mayen, Mayen-Koblenz, Rhineland-Palatinate, Germany

Classification
Species:Tridymite
Formula:SiO2
Confirmation
Validity:Believed Valid
References
References:Lehmann, J. (1877): Über die pyrogenen Quarze in den Laven des Niederrheins, Verhandlungen des naturhistorischen Vereins der preußischen Rheinlande und Westfalens, Vol. 34, Cohen Bonn, pp. 203-226
Data
Mineral Data:Click here to view Tridymite data
Locality Data:Click here to view Winfeld, Northern Lava flow, Bellerberg volcano, Ettringen, Mayen, Mayen-Koblenz, Rhineland-Palatinate, Germany
Nearest other occurrences of Tridymite
0.6km (0.4 miles) Caspar quarry, Bellerberg volcano, Ettringen, Mayen, Mayen-Koblenz, Rhineland-Palatinate, Germany
1.6km (1.0 miles) Ettringer Feld, Southern lava flow, Bellerberg volcano, Ettringen, Mayen, Mayen-Koblenz, Rhineland-Palatinate, Germany
2.3km (1.4 miles) Mayener Feld, Southern lava flow, Bellerberg volcano, Ettringen, Mayen, Mayen-Koblenz, Rhineland-Palatinate, Germany
3.8km (2.4 miles) Basalt quarries, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
4.5km (2.8 miles) Scoria quarry, Wingertsberg, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
5.5km (3.4 miles) Rothenberg, Bell, Mayen-Koblenz, Rhineland-Palatinate, Germany
8.7km (5.4 miles) Tönchesberg, Kruft, Mayen-Koblenz, Rhineland-Palatinate, Germany
9.1km (5.7 miles) Nickenicher Weinberg (Nickenicher Sattelberg), Nickenich, Andernach, Mayen-Koblenz, Rhineland-Palatinate, Germany
9.9km (6.2 miles) Nickenicher Sattel (Eicher Sattel), Nickenich, Andernach, Mayen-Koblenz, Rhineland-Palatinate, Germany
10.5km (6.5 miles) Eiterköpfe, Ochtendung, Mayen-Koblenz, Rhineland-Palatinate, Germany
 
Mineral and/or Locality  
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