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Hibonite from
Rumuruti meteorite, Laikipia County, Kenya


Locality type:Meteorite Fall Location
Classification
Species:Hibonite
Formula:CaAl12O19
Comments:Found in a number of Ca,Al-rich inclusions
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Hibonite data
Locality Data:Click here to view Rumuruti meteorite, Laikipia County, Kenya
Data Identifiers
Mindat Occurrence Record ID:886231
Long-form Identifier:1:3:886231:0
GUID (UUID V4):869ea742-aa6b-4e1d-980e-dbb178caaa07
References
Reference Search (possible matching items)
Journal (article/letter/editorial)
http://meteoritics.org 26Mg excess in hibonites of the Rumuruti chondrite Hughes 030 A. BISCHOFF1* and G. SRINIVASAN2...revised form 12 September 2002) Abstract–The Rumuruti chondrites (R chondrites) constitute a new, well-established...030, an interesting CAI consisting of abundant hibonite and spinel was found. Mg isotopic analyses revealed...components of R chondrites for the first time. The hibonite grains with high Al/Mg values (~1500 to 2600)...mineralogy and the petrographic setting of the hibonite-rich CAI, it is suggested that 4 million years
Journal (article/letter/editorial)
homepage: www.elsevier.de/chemer Invited review The Rumuruti chondrite group Addi Bischoff a,∗ , Nadia Vogel...October 2010 Accepted 20 February 2011 Keywords: Rumuruti R chondrites R chondrite mineralogy Noble gases...Al-rich inclusions a b s t r a c t Since 1994, the Rumuruti (R) chondrites have been recognized as a new,...(December, 2010). This group is named after the Rumuruti meteorite, the first and so far the only R chondrite...∼2.7 for R chondrites is the highest among all meteorite groups, and the mean oxygen isotope composition
Journal (article/letter/editorial)
http://meteoritics.org Ca,Al-rich inclusions in Rumuruti (R) chondrites Surya Snata ROUT and Addi BISCHOFF...2007; revision accepted 29 March 2008) Abstract–Rumuruti chondrites (R chondrites) constitute a well-characterized...search for and analysis of Al-rich objects in Rumuruti chondrites. We studied 20 R chondrites and found...or absence of different major phases (fassaite, hibonite, Na,Al-(Cl)-rich alteration products), can be...Kallemeyn et al. 1996). They are named after the Rumuruti meteorite, the first and so far the only R-chondrite
Journal (article/letter/editorial)
chemical compositions of Al-rich objects from Rumuruti (R) chondrites: Implications for their origin...the spinel. One simple concentric spinel- and hibonite-rich CAI H030/L, identified as a HAL-type CAI by...the Solar Nebula and the early solar system. The Rumuruti (R) chondrites, formerly called the ‘‘Carlisle...Weisberg et al., 1991), are named after the Rumuruti meteorite, the first, and so far only R chondrite fall;...abundance of olivine, and high D17O of  2.7% (Rumuruti proper has the highest D17O of 2.88%) (Schulze
Journal (article/letter/editorial)
sharp, but irregular interfaces with the host meteorite and have characteristics which suggest that formed...from hot deserts. The 26AI concentration in a meteorite depends upon different parameter like the exposure...analyzed sample and the terrestrial age of the meteorite. Our data contributes to the understanding of...production rate characteristic for the corresponding meteorite class. We do not find extremely low 26AI concentrations...order to reconstruct the irradiation history of a meteorite in detail, it is essential to analyze other cosmogenic
 
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