New analytical data combined with recent studies by other researchers allow the definition
of a Renazzo (CR) group of carbonaceous chondrites. We analyzed nine CR chondrites …

Twenty carbonaceous chondrites were analyzed by instrumental and radiochemical neutron
activation analysis for Na, Mg, Al, K, Ca, Sc, V. Cr, Mn. Fe, Co, Ni, Zn, Ga, Ge, As, Se. Br. Ru …

Bulk compositional and petrographic data clearly define the new R (Rumuruti) group of
chondrites consisting of Rumuruti (the only fall), ALH85151, Acfer 217, Carlisle Lakes, Dar al …

Abstract Seven carbonaceous chondrites (Allan Hills A77307, Adelaide, Al Rais, Coolidge,
Grosnaja, Karoonda and Renazzo) with uncertain classifications were analyzed by …

Carbonaceous chondrites, generally considered to be the most primitive surviving materials
from the early solar system, form a distinctive group in terms of bulk Mg/Si, Ca/Si, and Al/Si …

The degree of compositional variation of fine-grained minerals displayed by the members
within any carbonaceous chondrite group (ie, CI, CM, CV, CR) is a direct reflection of the …

A number of different classifications have been proposed for the CR chondrites; this study
aims at reconciling these different schemes. Mineralogy-based classification has proved …

Three samples of a new, Fe-rich chondrite were found in the Sahara in 1990 and 1991
(Acfer 182, Acfer 207, Acfer 214). The samples are paired and the meteorite will be …

The Fe-Ni metal within chondrites has been postulated to have originated either through
condensation or as a byproduct of chondrule formation. To test these hypotheses, we …

A coordinated study of the petrology, mineral chemistry, and bulk chemical and isotopic
composition of the five ungrouped carbonaceous chondrites Coolidge, Loongana 001, Los …