	Peterson, Tony D. (1989) Peralkaline nephelinites. I. Comparative petrology of Shombole and Oldoinyo L'engai, East Africa. Contributions to Mineralogy and Petrology, 101 (4) 458-478 doi:10.1007/bf00372219	Journal (article/letter/editorial)
	only two other locations (Mt. Shaheru, Zaire; Mayener Feld, Eifel). The hyperalkaline L'engai nephelinites...as variously resorbed or euhedral phenocrysts. Magnetite is present in some perovskite and melanite-bearing...nepheline, 20%-30%; perovskite, sphene, melanite, and magnetite, 0.5%-3.0%; apatite, trace; groundmass plus zeolite-carbonate...Sphene Melanite Sodalite Sanidine Perovskite Magnetite Apatite Xenoliths 52.8 0.6 30.9 10.6 0.9 0 0...Pv=perovskite, Me=melanite, Sp = sphene, Ma= magnetite, Sd= sodalite, An = analcime. The analcime analysis
	*Peterson, Tony D. (1989) Peralkaline nephelinites. Contributions to Mineralogy and Petrology, 102 (3) 336-346 doi:10.1007/bf00373727*	Journal (article/letter/editorial)
	temperatures are perovskite (1080~ olivine (1075~ and magnetite (1030~ (fO2=IW). The experimental method is the...(Sahama and Hyt6nen 1957); and the Eifel Province, Germany (location unspecified) (Fischer and Tillmans 1983)...Na2Ca2Si30 9 vom Mt Shaheru (Zaire) und aus dem Mayener Feld (Eifel). Neues Jahrb Mineral 2:49-59 Freestone...eruptive rocks and carbonatites of the Kaiserstuhl, Germany. In: Tuttle OF, Gittins J (eds) Carbonatites. Wiley
	*(1977) Europe Issue. The Mineralogical Record* Vol. 8 (4) The Mineralogical Record, Inc.**	Journal (issue)
	Minerals from the Volcanic District of Laacher See, Germany..................................................Lieber Heidelberg, West Germany Olaf Medenbach Bochum-Querenburg, West Germany Eric Offermann Arlesheim...desire is to visit Norway on collecting tours. In Germany there are still more, also with their own jour...from earlier visitors. A “Director of Studies” in Germany has given out, despite Norwegian protests, a guide...Valley and to develop them. Two Dr. Krantz of Germany, has survived and is still in use. Boring was done
	Bell, K., Keller, J. - Eds. (1995) Carbonatite Volcanism - Oldoinyo Lengai and the Petrogenesis of Natrocarbonatites - IAVCEI Proceedings in Volcanology No. 4. Springer Berlin Heidelberg. doi:10.1007/978-3-642-79182-6	Book
	Universitat Freiburg Albertstr. 23b 79104 Freiburg Germany This volume is a Contribution of the IGCP Project...greatly to the volume. Ottawa, Canada Freiburg, Germany October 1994 KEITH BELL JORG KELLER Contents...Universitat Freiburg, Albertstr. 23b, 79104 Freiburg, Germany 3 Department of Anthropology, St Lawrence University...Khibina. USSR (Czamanske et al. 1978). Kassel, Germany, and in the Fohberg wollastonite phonolite of the...Oxide Shive et al. (1990) report a spinel of the magnetite-jacobsite series (Fe2.13Mn0.54 MgO.2SZno.01Tio
	*Liebau, Friedrich (1985) Structural Chemistry of Silicates. Springer Berlin Heidelberg. doi:10.1007/978-3-642-50076-3*	Book
	kindly been provided by Dr. E. Keller, Freiburg, Germany. Although I have taken great care to avoid errors...improved the text. I also thank Dr. M. Czank, Kiel, Germany and Professor D. R. Veblen, Baltimore, Maryland...Potash feldspar Quartz Amphibole Pyroxene Biotite Magnetite, ilmenite Olivine Apatite 42 22 18 5 4 4 2...3 0 g from Mt. Shaheru (Zaire) and from the Mayener Feld (Eifel). Neues Jahrb Miner Mh 1983: 49-59 Fischer...189,231- 233 macfallite 270 Maddrell's salt 180 magnetite 4 majorite 2 makatite 196 manganoan wollastonite

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Magnetite from Mayener Feld, Mayen, Mayen-Koblenz, Rhineland-Palatinate, Germany

Magnetite from
Mayener Feld, Mayen, Mayen-Koblenz, Rhineland-Palatinate, Germany