Achievements
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President of the International Mineralogical Association (1982–1986) Honorary Fellow of the Geological Society of London Honorary Member of the Mineralogical Society of Great Britain and Ireland Honorary Member of the German Academy of Sciences Leopoldina Foreign Honorary Member of the Russian Mineralogical Society Foreign Member of the Union of the Soviet Socialist Republics Academy of Sciences Founder and Honorary President of the Bulgarian Mineralogical Society Doctor Honoris Causa of the Bulgarian Academy of Sciences Honorary citizen of Plovdiv The mineral kostovite was named in his honour. Also named in his honour were a genus of cretaceous ammonites and the Institute of Mineralogy of Crystallography at the Bulgarian Academy of Sciences.
