The density and porosity of meteorites from the Vatican collection

Details The density and porosity of meteorites from the Vatican collection The density and porosity of meteorites from the Vatican collection

Nov 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998m%26ps...33.1231c&link_type=abstract

Meteoritics & Planetary Science, vol. 33, no. 6, pp. 1231-1241.

Physics

90

Scientific paper

We have developed a non-destructive technique to measure the densities and porosities of large (50 gram to several kilogram) meteorite samples, and have begun a systematic measurement program starting with meteorites from the Vatican Observatory collection. Our technique utilizes a modified Archimedean method (40 ?m glass spheres substituting for the fluid) to determine bulk density, and an unusually large helium pycnometer to determine grain density. From these, the porosity is calculated. We report here our first results for 89 samples (nearly doubling the published database on porosities of meteorite hand samples) including porosities of 35 different meteorites. These include several types not previously reported: eight iron meteorites, six stony-irons, an enstatite chondrite, the CI carbonaceous chondrite Orgueil, and the SNC meteorite Nakhla.

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