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Yihuta
Basic information Name: Yihuta
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2023
Country: China
Mass:help 179.8 g
Classification
  history:
Meteoritical Bulletin:  MB 112  (2023)  EH3
Recommended:  EH3    [explanation]

This is 1 of 142 approved meteorites classified as EH3.   [show all]
Search for other: EH chondrites, Enstatite chondrites, Enstatite chondrites (type 3), and Enstatite-rich meteorites
Comments: Approved 15 Oct 2023
Writeuphelp
Writeup from MB 112:

Yihuta        43.034572°N, 122.167435°E

Nei Mongol, China

Find: 2023 Apr 1

Classification: EHa3

History: (Ziyao Wang, WangZ) Discovered by Baoligao about 12 km SW of Yihuta,Tongliao city, Inner Mongolia on 1 Apr 2023, and was subsequently acquired by Zhang Chunliang and Ji Xiaofei in 3 Jul 2023.

Physical characteristics: (Ziyao Wang, WangZ) Irregular brown stone of 179.8 g with about 50 % black fusion crust.

Petrography: (R. Bartoschewitz, Bart) dark-gray matrix with well developed, dominantly lighter, often dark rimmed chondrules (0.2-1.5 mm, av. 0.5 mm); opaque phases occurs dominantly as irregular inclusions.

Geochemistry: (R. Bartoschewitz, Bart, and P. Appel, Kiel) forsterite Fa1.0±0.4 (n=20); enstatite Fs1.2±0.7Wo0.5±0.2 (n=35); diopside En59Fs0.4Wo40 (n=1); silica. Kamacite Ni=3.3±0.4; Si=2.2±0.1 (n=4), troilite Cr=0.6±0.3, Ti=0.19±0.04 (n=48); niningerite Fe=13.5±1.3 (n=6; all wt-%); daubreelite, Cr-sulfide, perryite, schreibersite. Magnetic susceptibility (R. Bartoschewitz, Bart) log χ (× 10-9 m3/kg) = 5.42.

Classification: enstatite chondrite (EHa3, W0/1)

Specimens: 22.3 g on deposit at NMB, main mass with Zhang Chunliang and Ji Xiaofei and 11 g with Bart.

Data from:
  MB112
  Table 0
  Line 0:
State/Prov/County:Nei Mongol
Origin or pseudonym:desert
Date:2023 Apr 1
Latitude:43.034572°N
Longitude:122.167435°E
Mass (g):179.8
Pieces:1
Class:EHa3
Shock stage:S2
Weathering grade:W0/1
Fayalite (mol%):1.0±0.4 (n=20)
Ferrosilite (mol%):1.2±0.7 (n=35)
Wollastonite (mol%):0.5±0.2
Magnetic suscept.:5.42
Classifier:R. Bartoschewitz
Type spec mass (g):22.3
Type spec location:NMB
Main mass:Zhang Chunliang and Ji Xiaofei
Finder:Baoligao
Comments:working name WZ239; submitted by R. Bartoschewitz
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)
NMB: Natural History Museum Bern Bernastrasse 15 CH-3005 Bern Switzerland, Switzerland; Website (institutional address; updated 2 Mar 2012)
WangZ: Ziyao Wang, Hebei GEO University North Campus, Huai An dong road 127, Shijiazhuang, Hebei Province , China (private address; updated 25 Jun 2021)
Catalogs:
References: Published in Meteoritical Bulletin, no. 112, in preparation (2023)
Find references in NASA ADS:
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Chunliang Zhang                                    
Xiaofei Ji               
Ziyao Wang               
Geography:

China
Coordinates:
     Recommended::   (43° 2' 4"N, 122° 10' 3"E)

Statistics:
     This is 1 of 30 approved meteorites from Nei Mongol, China (plus 1 unapproved name)
     This is 1 of 512 approved meteorites from China (plus 12 unapproved names) (plus 1 impact crater)
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