Barbianello: An ungrouped nickel-rich iron meteorite found in Italy

Details Barbianello: An ungrouped nickel-rich iron meteorite found in Italy Barbianello: An ungrouped nickel-rich iron meteorite found in Italy

Aug 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004m%26psa..39..143f&link_type=abstract

Meteoritics & Planetary Science, Vol. 39, No. 8, Supplement , A121-A132 (2004), p.A143-A149

Computer Science

Scientific paper

An unusual iron was found in 1960 in Barbianello (northern Italy, Pavia municipality) by a farmer, Clemente Allini, ploughing his fields. Years later, the iron was recognized as a meteorite but not officially classified. Our investigations indicate that Barbianello is a unique nickel-rich ataxite with dark and light regions texturally similar to, but compositionally distinct from, Santa Catharina iron. The light regions are chemically homogeneous, have a Ni content of 27.1 wt%, and a composition similar to irons of group IAB-IIICD. The dark regions are inhomogeneous with Ni ranging from 40 to 58 wt% and oxygen up to 20 wt%. Relics of unoxidized metal and textural relationships indicate that, unlike Santa Catharina, the dark regions result from the oxidation of a metal compositionally distinct from that of light regions.

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