Do Meteorites exist consisting predominantly of Feldspar?

Abstract

IN earlier communications¹ I have discussed the bluish fluorescence excited by ultra-violet light in many inorganic chemicals and minerals, a fluorescence which can be destroyed by strong annealing as well as by strong acids and which is most probably due to traces of organic substances; it can be regenerated by adding such traces to the annealed samples. As the fluorescence can also be observed in many magmatic minerals, one could think of applying this simple test for organic traces (or adsorbed OH-groups according to Ewles) also to meteorites.