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Dorrite from
Kunkskopf, Wassenach, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany

Classification
Species:Dorrite
Formula:Ca4(Mg3Fe93+)O4(Si3Al8Fe3+O36)
Comments:Found by G. Blaß. Analysis gave a titanium content of 0.64 to 0.68 atoms per formula unit from 28 cations. These crystals, therefore, are dorrite since a maximum titanium content limit of 1 atom per formula unit from 28 cations has been established in the nomenclature.
Habit:club-shaped twins
Colour:red
Confirmation
Validity:Believed Valid
References
References:Blaß, G. and Kruijen, F. (2015) Neuigkeiten aus der Vulkaneifel (II/2015). Mineralien-Welt, 26(5), 80-90.
Data
Mineral Data:Click here to view Dorrite data
Locality Data:Click here to view Kunkskopf, Wassenach, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany
Nearest other occurrences of Dorrite
4.0km (2.5 miles) A Nickenicher Sattel (Eicher Sattel), Nickenich, Andernach, Mayen-Koblenz, Rhineland-Palatinate, Germany
5.7km (3.5 miles) B Rothenberg, Bell, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
6.3km (3.9 miles) C Nickenicher Weinberg (Nickenicher Sattelberg), Nickenich, Andernach, Mayen-Koblenz, Rhineland-Palatinate, Germany
11.0km (6.8 miles) D Caspar quarry, Bellerberg volcano, Ettringen, Mayen, Mayen-Koblenz, Rhineland-Palatinate, Germany
11.1km (6.9 miles) E Bellerberg volcano, Ettringen, Mayen, Mayen-Koblenz, Rhineland-Palatinate, Germany
47.1km (29.3 miles) F Emmelberg, Üdersdorf, Daun, Vulkaneifel, Rhineland-Palatinate, Germany
Mineral and/or Locality  
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