Paul Ramdohr (1890-1985), celebrated mineralogist, ore-deposit researcher and pioneer of ore microscopy spent three periods in Australia that differed considerably from each other in nature and structure. He was a Principal Research Scientist specializing in microscopy and ore deposits for nine months with the Council for Scientific and Industrial Research in Melbourne in 1948-9. For three months in 1962 he was Visiting Professor of Geology at the University of New South Wales. On holiday in Adelaide and Sydney in December 1970 and January 1971, he negotiated an agreement as a result of which the Mundrabilla II meteorite was shipped to Heidelberg in Germany for slicing and distribution for research purposes. This study summarizes his activities and direct contributions to Australian mineralogy during and as a result of those visits.