First chemical characterization of the new Polish meteorite "Baszkowka" byneutron activation analysis

New Polish meteorite "Baszkowka" which fell in the vicinity of Warsaw on Au gust 25 1994, has been studied by neutron activation analysis (NAA) 21 elem ents (As, Au, Co, Cr, Cu, Eu, Fe, Ga, Hf,Ir, K, La, Mn, Na, Ni, Os, Sc, Se, Sm, Yb and Zn) were determined by instrumental NAA. In addition Au and Pd as well as La, Ce, Nd, Sm, Eu, Tb, Dy, Tm, Yb and Lu were determined by rad iochemical NAA and Al, Ca, Fe, Mg, P, Si and Ti by classical methods. Speci ation study was also carried out by isolating magnetic fraction from the po wdered meteoritic sample and subsequent fractionation of metallic phases by controlled dissolution in hydrofluoric acid. Preliminary analytical work o n another meteorite "Mt. Tazerzait" which fell a few years earlier in Afric a shows that both meteorites have very similar composition. The results of this study as well as other published petrographic, mass spectrometric etc. investigations suggest that "Baszkowka" (and probably also "Mt. Tazerzait" ) may originate from another parent body than all other known chondrites of t group.