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Loulan Yizhi 042
Basic information Name: Loulan Yizhi 042
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2019
Country: China
Mass:help 22.9 g
Classification
  history:
Recommended:  H/L-melt rock    [explanation]

This is the only approved meteorite classified as H/L-melt rock.
Search for other: H chondrites, H chondrites (type 4-7), H/L chondrites, H/L chondrites (type 4-7), L chondrites, L chondrites (type 4-7), Melted chondrites, Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 23 Apr 2022
Writeuphelp
Writeup from MB 111:

Loulan Yizhi 042        ~40°30’N, ~89°40’E

Xinjiang, China

Find: 2019

Classification: H/L-melt rock

History: (Ziyao Wang) Ai Li Kayiti discovered this stone close to Loulan Yizhi in 2019 while they were searching for archaeological objects, sold it on the Shanshan market to Ziyao Wang, and donated it to R. Bartoschewitz.

Physical characteristics: Single brown stone of 22.9 g

Petrography: (R. Bartoschewitz, Bart) granular texture of hypidiomorphic olivine 100-500 µm (~50%), pyroxene laths up to 1500 µm (~30%), feldspar, and intergranular devitrified glass with chromite grains. Metal and sulfide specks up to 5 µm occur in all mineral phases.

Geochemistry: (R. Bartoschewitz, Bart, P. Appel and B. Mader, Kiel) Olivine Fa20.6 (Fa16.8-23.8; Fe/Mn=42-56; n=18); low-Ca pyroxene Fs21.1Wo3.9 (Fs21.2-22.9Wo3.4-4.8); Fe/Mn=27-34; n=7); pigeonite En56-70Fs22-32Wo8-12 (n=7); feldspar An6-17Or4-12 (n=15); chromite CRAL80-88, FFM74-80 (n=11). Magnetic susceptibility (R. Bartoschewitz, Bart) log χ (× 10-9 m3/kg) = 4.19. O-isotopes (A. Pack and T. Di Rocco, UGött): δ17O(‰) = 4.439, δ18O(‰) = 6.840, D’17O (0.528) = 0.830.

Classification: H/L melt rock (OC based on Fe/Mg vs. Fe/Mn of olivine and O-isotopes, H/L due to Fa/Fa and O-isotopes)

Specimens: 4.74 g on deposit at Kiel, main mass and polished thin section with Bart, 2 g with Ziyao Wang.

Data from:
  MB111
  Table 0
  Line 0:
State/Prov/County:Xinjiang
Origin or pseudonym:desert
Date:2019
Latitude:~40°30'N
Longitude:~89°40'E
Mass (g):22.9
Pieces:1
Class:H/L-melt rock
Shock stage:low
Fayalite (mol%):20.2±2.2 (n=18)
Ferrosilite (mol%):22.1±0.7 (n=17)
Wollastonite (mol%):3.9±0.6
Magnetic suscept.:4.19
Classifier:R. Bartoschewitz
Type spec mass (g):4.74
Type spec location:Kiel
Main mass:R. Bartoschewitz
Finder:Ai Li Kayiti
Comments:working name WZD#19.; submitted by R. Bartoschewitz
Plots: O isotopes:  
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)
UGött: Geowissenschaftliches Museum, Georg-August-Universität Göttingen, Goldschmidtstr. 3, 37077 Göttingen, Germany; Website (institutional address; updated 26 Nov 2020)
Catalogs:
References: Published in Meteoritical Bulletin, no. 111, in preparation (2022)
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Geography:

China
Coordinates:
     Recommended::   (40° 30'N, 89° 40'E)

Statistics:
     This is 1 of 293 approved meteorites from Xinjiang, China (plus 5 unapproved names)
     This is 1 of 457 approved meteorites from China (plus 10 unapproved names) (plus 1 impact crater)
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