header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 1 Apr 2023
Search for: Search type: Search limits: Display: Publication:
Names
Text help
Places
Classes
Years
Contains
Starts with
Exact
Sounds like
NonAntarctic
Falls  Non-NWAs
What's new
  in the last:
Limit to approved meteorite names
Search text:  
Northwest Africa 12788
Basic information Name: Northwest Africa 12788
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12788
Observed fall: No
Year found: 2019
Country: Algeria
Mass:help 22 g
Classification
  history:
Recommended:  Lunar (feldsp. breccia)    [explanation]

This is 1 of 312 approved meteorites classified as Lunar (feldsp. breccia).   [show all]
Search for other: Lunar meteorites
Comments: Approved 23 Feb 2023
Writeuphelp
Writeup from MB 112:

Northwest Africa 12788 (NWA 12788)

Algeria

Purchased: 2019

Classification: Lunar meteorite (feldspathic breccia)

History: (Ziyao Wang) Purchased by Ziyao Wang from Fayssal Mezgouri in Agadir, Morocco, Apr 2019.

Physical characteristics: (Ziyao Wang) 4 white stones totalling 22 g, without fusion crust

Petrography: (R. Bartoschewitz, Bart) fine-grained, microvesicular, melt-textured breccia consisting of mineral fragments (olivine, pyroxene, plagioclase, accessory chromite, ilmenite troilite, metal) and lithic clasts (gabbroic, anorthositic).

Geochemistry: (R. Bartoschewitz, Bart, P. Appel and B. Mader, Kiel) Olivine Fa24.3±4.2, Fe/Mn=88 (n=4); low Ca pyroxene Fs18.4±5.0Wo3.4±1.0, Fe/Mn=57 (n=3); pigeonite En71Fs23Wo6 (n=1); augite En41Fs13Wo45 (n=1); plagioclase An95-98Or<0.2 (n=12); chromite CRAL62-74, FFM72-80 (n=3); ilmenite. Taenite Ni=21-23, Co=1.8-2.6 wt% (n=3); troilite; pyrrhotite. Magnetic susceptibility (R. Bartoschewitz, Bart) log χ (× 10-9 m3/kg) = 2.38.

Classification: Lunar (feldspatic melt-breccia)

Specimens: 4.42 g on deposit at Kiel, Wang Ziyao holds the main mass, and 3 g with Bart.

Data from:
  MB112
  Table 0
  Line 0:
Origin or pseudonym:desert
Place of purchase:Agadir, Morocco
Date:P 2019
Mass (g):22
Pieces:4
Class:Lunar (feldsp. breccia)
Fayalite (mol%):24.3±4.2 (n=4)
Ferrosilite (mol%):18.4±5.0 (n=3)
Wollastonite (mol%):3.4±1.0
Magnetic suscept.:2.38
Classifier:R. Bartoschewitz
Type spec mass (g):4.42
Type spec location:Kiel
Main mass:Ziyao Wang
Finder:anonymous
Comments:working name WZ122; 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)
Catalogs:
References: Published in Meteoritical Bulletin, no. 112, in preparation (2023)
Find references in NASA ADS:
Find references in Google Scholar:
Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Ziyao Wang                  
Geography:

Algeria
Coordinates:Unknown.

Statistics:
     This is 1 of 1273 approved meteorites from Algeria (plus 29 unapproved names) (plus 4 impact craters)

Direct link to this page