Roedderite in the Qingzhen (EH3) chondrite

Details Roedderite in the Qingzhen (EH3) chondrite Roedderite in the Qingzhen (EH3) chondrite

Mar 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986metic..21..141r&link_type=abstract

Meteoritics (ISSN 0026-1114), vol. 21, March 31, 1986, p. 141-149. NASA-supported research.

Computer Science

3

Chondrites, Meteoritic Composition, Mineralogy, Crystal Structure, Enstatite, Planetary Evolution, Silicon Dioxide, Meteorites, E3 Chondrites, Stony Meteorites, Enstatites, Photomicrographs, Qingzhen, Roedderite, Minerals, Albite, Inclusions, Samples, Meteorite, Metal, Sulfide, Phases, Crystals, Oxides, Matrix, Description, Vesicles, Origin, Formation, Silicon Dioxide, Comparisons, Composition, Chemistry, Mineralogy

Scientific paper

The rare mineral roedderite, (Na1.09 K0.89 Ca0.02)2.00 (Mg4.71 Fe0.27)4.98 (Si11.80 Al0.09)11.89 O30 has been found in accessory amounts in the highly unequilibrated enstatite chondrite, Qingzhen. It occurs in association with minor amounts of albite and SiO2 as inclusions within the metal or sulfide phases of metal-sulfide assemblages. The roedderite crystals are connected through oxide and silicate veins to the surrounding matrix. The presence of glass coated vesicles on the surface of the assemblages strongly suggests that roedderite originated in the presence of a fluid phase, presumably during post-accretional planetary processes.

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