(1) Department of Physics, University of Kerala, 695 581 Kariavattom, Trivandrum;(2) Institute for Mineralogie, Freie Universitaet Berlin, Takustr. 6, 1000 Berlin 33, West Germany
Abstract:
The effect of impurities on the growth of manganese carbonate crystals has been studied. Stereophotogrammetric analysis showed that all crystal faces have the same Miller indices and the peanut-shaped forms are twins with twin axis 0001.