OLE Johnsen
Ole Johnsen is Curator of the Geological Museum at the University of Copenhagen, Denmark. He has widely written on minerals in popular and scientific magazines and periodicals, and has served on the committees of national and international organizations including the International Mineralogical Association and the Mineralogical Society of America.
Ole Johnsen is Curator of the Geological Museum at the University of Copenhagen, Denmark. He has widely written on minerals in popular and scientific magazines and periodicals, and has served on the committees of national and international organizations including the International Mineralogical Association and the Mineralogical Society of America. See less
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