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Questions related from H.-J. Förster
In the QAP diagrams of, for example, Streckeisen, the different types of magmatic rocks are dsicriminated according to their modeal proportions of quartz, K- feldspar and alkali feldspar. This is...
09 July 2020 5,222 1 View
Is there somebody around who is interested in collaborative research on Se-bearing minerals? We have here some expertise in the study of these ore minerals and are part of professional networks...
04 July 2014 7,037 37 View
At the end of the 1990's, we compiled and published comprehensive data on the trace-element composition of trioctahedral micas (i.e., TISCHENDORF, G., FÖRSTER, H.-J. and GOTTESMANN, B. (2001a)...
16 April 2014 203 11 View
We have here a small granite stock with an apparently abnormal composition, for which we have not yet a real clue how it originated. The granite is highly evolved, high-K, weakly peraluminous (77...
06 March 2014 6,590 27 View
