Summary: Sitathali is an olivine-bronzite chondrite, consisting largely of olivine (Fa₁₈) and orthopyroxene (Fs₁₉) with minor amounts of a clinopyroxene (Ca₃₆Fe₁₂Mg₅₂), plagioclase (An₁₂), nickel-iron, troilite, chromite, and a phosphate (apatite or merrillite). The chemical analysis of a 4 gm sample gave SiO₂ 39·85, TiO₂ 0·10, Al₂O₃ 2·84, Cr₂O₃ 0·35, FeO 13·27, MnO 0·28, MgO 23·01, CaO 1·84, Na₂O 0·65, K₂O 0·15, H₂O+ 0·23, H₂O− 0·05, P₂O₅ 0·25, FeS 5·09, Fe 10·22, Ni 1·58, Co tr. total 99·76. The metal displays Neumann bands, some deformed, as well as areas of apparent flowage. Troilite locally exhibits twin lamellae and in places replaces kamacite in the plessite fields. Elsewhere it is in braided veinlets and globules, both reflecting former melting. The varied textures suggest a complex post-formational history encompassing several deformational events presumably due to breakups and possible extraterrestrial impacts.