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Abai
Basic information Name: Abai
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2016
Country: Kazakhstan
Mass:help 666 g
Classification
  history:
Recommended:  Iron, IIAB    [explanation]

This is 1 of 137 approved meteorites classified as Iron, IIAB.   [show all]
Search for other: IIAB irons, Iron meteorites, and Metal-rich meteorites
Comments: Approved 27 Jul 2019
Writeuphelp
Writeup from MB 108:

Abai        42°41.11’N, 70°4.35’E

Chimkent, Kazakhstan

Find: 2016 Mar 20

Classification: Iron meteorite (IIAB)

History: Single piece of iron was found by Mr. Skinder at the Altyn-Kazgan hill fort (3rd-7th century CE) during an electromagnetic survey at a depth of 0.4 m, 6 km NW of Abai village on March 20, 2016, in the Turkistan Region, Keless (Saryagash) Dis. The meteorite was situated deep in the cultural layer. The absence of additional specimens in this district may indicate that the sample was brought to the place of its discovery by residents of the first millennium CE.

Physical characteristics: The meteorite of angular flattened shape is 8 × 6.5 × 3 cm in size. The meteorite has regmaglypted surface covered by a shell of the carbonates and iron oxides. Fusion crust is partly preserved. Total weight is 666 g.

Petrography: the meteorite is composed of kamacite grains 2-14 mm in size with thin taenite and schreibersite lamellae and inclusions of rhabdite. The average kamacite band width is 5.85±2.95 mm (n=17).

Geochemistry: Mineral compositions and geochemistry: (N. N. Kononkova, Vernad, EMP) kamacite: Ni =6.11±0.60 (N=13), Co = 0.51±0.07 (N=13), P = 0.14± 0.04 (N=13); taenite: Ni = 24.99±2.68 (N=6) (all in wt%); schreibersite: Ni = 31.0±3.0 (N=5), P = 15.2±0.2 (N=5); rabdite: Ni = 39.4±1.1 (N=3), P = 15.2±0.2 (N=3) (all in wt%); (ICP-AS, I. A. Gromyak, ICP-MS, E. S. Toropchenova, A.V. Zhilkina, Vernad, bulk sample) Ni 6.23 wt %, Co 0.42 wt %, P 0.22 wt %; Au 3.24, Ga 83.7, Ge 186, Cr 19.6, W 0.23, As 14.0 (all in ppm).

Classification: Iron, IIB complex, Ogg

Specimens: A 113.4 g sample, 12.4 g in 5 subsamples and polished section are on deposit at Vernad. Main mass is on deposit at DMUH.

Data from:
  MB108
  Table 0
  Line 0:
State/Prov/County:Chimkent
Origin or pseudonym:Abai
Date:2016 Mar 20
Latitude:42°41.11'N
Longitude:70°4.35'E
Mass (g):666
Pieces:1
Class:Iron, IIAB
Classifier:S. N. Teplyakova, A. M. Abdrakhimov, Vernad
Type spec mass (g):125.87
Type spec location:Vernad
Main mass:DMUH
Finder:Mr. Eugeny O. Skinder, xzibit_moto@mail.ru
Comments:Submitted by Abdrakhimov A.M. (Vernad)
Institutions
   and collections
Vernad: Vernadsky Institute of Geochemistry and Analytical Chemistry, Russia (institutional address; updated 21 Feb 2016)
DMUH: Dedovsk Museum of Universe History, Russia; Website (institutional address; updated 26 Sep 2011)
Catalogs:
References: Published in Meteoritical Bulletin, no. 108, in preparation (2019)
Find references in NASA ADS:
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Geography:

Kazakhstan
Coordinates:
     Recommended::   (42° 41' 7"N, 70° 4' 21"E)

Statistics:
     This is the only approved meteorite from Chimkent, Kazakhstan
     This is 1 of 20 approved meteorites from Kazakhstan (plus 4 impact craters)
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