 | | Journal (article/letter/editorial) | | objects (101 CAIs, 19 Al-rich chondrules, and 6 spinel-rich fragments). Based on mineralogical characterization...simple concentric spinel-rich inclusions (42), (2) fassaite-rich spherules, (3) complex spinel-rich CAIs (53)... and (6) Al-rich (spinel-rich) fragments. The simple concentric and complex spinel-rich CAIs have abundant...abundant spinel and, based on the presence or absence of different major phases (fassaite, hibonite, Na...appear to be primitive (e.g., low FeO-contents in spinel, low abundances of Na,Al-(Cl)-rich alteration products; |  | | Journal (article/letter/editorial) | | 2010). This group is named after the Rumuruti meteorite, the first and so far the only R chondrite fall...∼2.7 for R chondrites is the highest among all meteorite groups, and the mean oxygen isotope composition... 7. 8. 9. 10. 11. 12. 13. 14. 15. A. Bischoff et al. / Chemie der Erde 71 (2011) 101–133 Textural.... . . . . . . . . . . . . . . . . 6.8. Oxides (spinel, chromite, magnetite, ilmenite, perovskite) . .... . . . . . . . . . . . . . . . . . . . 6.8.1. Spinel and chromite . . . . . . . . . . . . . . . . . |
|
