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Bayin Gobi 002
Basic information Name: Bayin Gobi 002
     This is an OFFICIAL meteorite name.
Abbreviation: BG 002
Observed fall: No
Year found: 2011
Country: China
Mass:help 3.5 kg
Meteoritical Bulletin:  MB 106  (2018)  L5
Recommended:  L5    [explanation]

This is 1 of 8831 approved meteorites (plus 4 unapproved names) classified as L5.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 28 Jun 2017
Writeup from MB 106:

Bayin Gobi 002 (BG 002)        41°06.67’N, 105°09.38’E

Nei Mongol, China

Find: 18 Oct 2011

Classification: Ordinary chondrite (L5)

History: The meteorite was found by Taojirigele on 18 Oct 2011, in the Gobi Desert around Yingensumu city in Neimenggu province, China. The meteorite was found by a person hunting for agate and gobi stones.

Physical characteristics: The meteorite was a single piece, half covered by black fusion crust.

Petrography: (S. Hu and Y. Lin, IGGCAS. Z. Xia and B. Miao, GUT) Some relict chondrules without sharp boundaries were found in the matrix of fine-grained silicates, metal and troilite. The meteorite is mainly composed of olivine, pyroxene, plagioclase,Fe-Ni metal (kamacite and taenite) and troilite, with minor chromite and apatite. Fe-Ni metal displays strong terrestrial weathering.

Geochemistry: Mineral compositions and geochemistry: (S. Hu and Y. Lin, IGGCAS. Z. Xia and B. Miao, GUT) Olivine (Fa25.3±0.5) and low-Ca pyroxene (Fs21.3±0.5Wo1.6±0.2) are homogeneous in chemical composition.

Classification: (S. Hu and Y. Lin, IGGCAS. Z. Xia and B. Miao, GUT) L5

Specimens: The main mass was held by Taojirigele and 224 g was deposited at IGGCAS.

Data from:
  Table 0
  Line 0:
State/Prov/County:Nei Mongol
Date:18 Oct 2011
Mass (g):3500
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):25.3±0.5 (n=5)
Ferrosilite (mol%):21.3±0.3 (n=5)
Wollastonite (mol%):1.6±0.2 (n=5)
Classifier:S. Hu and Y. Lin, IGGCAS. Z. Xia and B. Miao, GUT
Type spec mass (g):224
Type spec location:IGGCAS
Main mass:Taojirigele
Comments:Submitted by S. Hu and Y. Lin, IGGCAS. Z. Xia and B. Miao, GUT
   and collections
GUT: College of Earth Sciences, Guilin University of Technology, 12 Jiangan Road, Guilin 541004, China (institutional address; updated 18 Oct 2012)
IGGCAS: Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China (institutional address; updated 16 Oct 2011)
References: Published in Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.
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     Recommended::   (41° 6' 40"N, 105° 9' 23"E)

     This is 1 of 28 approved meteorites from Nei Mongol, China (plus 1 unapproved name)
     This is 1 of 489 approved meteorites from China (plus 13 unapproved names) (plus 1 impact crater)
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