  The examination of the physical properties of chondrules has generally
received less emphasis than other properties of meteorites such as their
mineralogy, petrology, and chemical and isotopic compositions. Among the
various physical properties of chondrules, chondrule size is especially
important for the classification of chondrites into chemical groups, since each
chemical group possesses a distinct size-frequency distribution of chondrules.
Knowledge of the physical properties of chondrules is also vital for the
development of astrophysical models for chondrule formation, and for
understanding how to utilize asteroidal resources in space exploration. To
examine our current knowledge of chondrule sizes, we have compiled and provide
commentary on available chondrule dimension literature data. We include all
chondrite chemical groups as well as the acapulcoite primitive achondrites,
some of which contain relict chondrules. We also compile and review current
literature data for other astrophysically-relevant physical properties
(chondrule mass and density). Finally, we briefly examine some additional
physical aspects of chondrules such as the frequencies of compound and
'cratered' chondrules. A purpose of this compilation is to provide a useful
resource for meteoriticists and astrophysicists alike.
