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Basic information Name: Longtian
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 1991
Country: China
Mass:help 350 kg
Meteoritical Bulletin:  MB 88  (2004)  IIIAB
MetBase:  v. 7.1  (2006)  IIIAB
Recommended:  Iron, IIIAB    [explanation]

This is 1 of 338 approved meteorites classified as Iron, IIIAB.   [show all]
Search for other: IIIAB irons, Iron meteorites, and Metal-rich meteorites
Writeup from MB 88:


Cengong, Guizhou, China

Found 1991 March 5

Iron (IIIAB)

According to the owner of the iron, Mr. Feng Liang, a 350 kg iron was dug from ~1 foot underground on a hilltop by villagers Deying Wu and his wife while they were reclaiming virgin soil there from February 29 - March 5, 1991. The meteorite has a cone like shape and is 70 cm long. Petrography and mineralogy (Y. Lin, IGG): Widmannstaetten structure, consisting predominantly of kamacite (6.2-7.4 wt% Ni) bands (~0.9 mm in width) with minor thin planes of taenite (<0.1 mm in width) and accessory schreibersite. The iron is structurally classified as a medium octahedrite. INAA (J. Wasson, UCLA): Ni 73.2 mg/g, Co 4.95 mg/g, Cr 153 mg/g, Ga 19.3 μg/g, As 3.29 μg/g, Ir 9.35 μg/g, Au 0.531 μg/g, hence low Au, high Ir IIIAB iron. Specimens : type specimen, 23 g, CAS ; main mass Mr Feng Liang.

   and collections
UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011)
CAS: Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China (institutional address; updated 16 Oct 2011)
IGG: Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China (institutional address; updated 16 Oct 2011)
References: Published in Meteoritical Bulletin, no. 88, MAPS 39, A215-A272 (2004)
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     Recommended::   (27° 21'N, 108° 30'E)

     This is 1 of 5 approved meteorites from Guizhou, China
     This is 1 of 462 approved meteorites from China (plus 10 unapproved names) (plus 1 impact crater)
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