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| Baqiangzi | |||||||||||||||||||||||||||||||||||||||
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| Basic information | Name: Baqiangzi This is an OFFICIAL meteorite name. Abbreviation: There is no official abbreviation for this meteorite. Observed fall: No Year found: 2012 Country: China Mass:  1200 g | ||||||||||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 3 approved meteorites classified as EL7. [show all] Search for other: EL chondrites, Enstatite chondrites, Enstatite chondrites (type 4-7), and Enstatite-rich meteorites | ||||||||||||||||||||||||||||||||||||||
| Comments: | Approved 23 May 2020 | ||||||||||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 109:
Baqiangzi 43°54’09.2"N, 93°12’13.2"E Xinjiang, China Find: 2012 Classification: Enstatite chondrite (EL7) History: (Ziyao Wang) One piece was discovered by the geologist Jianming Wang (Hami/Xinjiang) during field work near Barkol in 2012. After confirmation of its meteoritic nature, Jianming Wang discovered further fragments in 2019. Physical characteristics: (Ziyao Wang) Three dark-yellowish, irregular stones of 899, 176 and 125 g. Petrography: (R. Bartoschewitz) Breccia of dark olive-green silicate clasts with fine metal particles in a lighter host, often separated by a spongy network of metal veins. Strongly recrystallized meteorite (av. grain size ~100 µm), with few chondrules relict up to 0.8 mm. Main minerals are olivine, pyroxene, metal, and sulfides. Feldspar grains are up to 150 µm. Geochemistry: (R. Bartoschewitz, Bart, P. Appel and B. Mader, Kiel) olivine Fa0.2±0.1 (n=19); low-Ca pyroxene Fs0.3±0.1Wo1.4±0.3 (n=6); diopside En53Fs1Wo46 (n=2); feldspar An17±5Or2 (n=3). Kamacite Ni=6.9, Co=0.7, Si<0.1 (n=6); troilite Cr=0.7, Ti=0.2 (n=4); alabandite Fe=6 (n=1) (all wt-%). Magnetic susceptibility (R. Bartoschewitz, Bart) log χ (× 10-9 m3/kg) = 5.45 Classification: Enstatite chondrite (EL7, W1), based on texture and plagioclase size Specimens: 20.4 g on deposit at Kiel, Ziyao Wang holds the main mass, and 17 g with Bart. | ||||||||||||||||||||||||||||||||||||||
| Data from: MB109 Table 0 Line 0: |
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| Institutions and collections |
Kiel: Geologisches und Mineralogisches Museum, Institut für Geowissenschaften, Christian-Albrechts-Universität Kiel, Ludewig-Mayn-Str. 10, D-24118 Kiel, Germany, Germany (institutional address; updated 13 Sep 2013) Bart: Bartoschewitz Meteorite Laboratory, Weiland 37, D-38518 Gifhorn, Germany; Website (private address; updated 30 Nov 2019) |
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| References: | Published in Meteoritical Bulletin, no. 109, in preparation (2020)
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| Photos: |
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Geography:
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Statistics: This is 1 of 302 approved meteorites from Xinjiang, China (plus 5 unapproved names) This is 1 of 467 approved meteorites from China (plus 10 unapproved names) (plus 1 impact crater) | ||||||||||||||||||||||||||||||||||||||
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