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Northwest Africa 13899
Basic information Name: Northwest Africa 13899
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13899
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass:help 5.5 g
Classification
  history:
Meteoritical Bulletin:  MB 110  (2022)  Lunar (frag. breccia)
Recommended:  Lunar (frag. breccia)    [explanation]

This is 1 of 30 approved meteorites classified as Lunar (frag. breccia).   [show all]
Search for other: Lunar meteorites
Comments: Approved 11 Nov 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 13899 (NWA 13899)

(Northwest Africa)

Purchased: 2019

Classification: Lunar meteorite (frag. breccia)

History: In 2019 at the mineral show in Beijing Ziyao Wang discovered on the bottom of a box with ordinary chondrites from northwest Africa some small strange stones. This one he donated to Rainer Bartoschewitz.

Physical characteristics: 5.5 g gray grooved irregular fragment with orange soil adhersions. Gray cut face with white inclusions and few metallic specks.

Petrography: (R. Bartoschewitz, Bart) Polymict fragmental breccia of dominately mafic lithic clasts (gabbro, dunite) with accessoric chromite, silica, kamacite and taenite, minor anorthosite clasts (frequently transformed to maskelynite), and mineral fragments.

Geochemistry: (R. Bartoschewitz, Bart, P. Appel and B. Mader, Kiel) Olivine Fa20.4-41.9 (Fe/Mn 65-118; n=4); fayalite Fa85.0 (n=1); augite En28-50Fs55-14Wo18-35 (Fe/Mn 47-74; n=4); anorthite An94.2-97.4Or<0.5 (n=7); chromite CRAL=62, FFM=68 (n=1). Ilmenite MgO=4.5 wt% (n=1); kamacite Ni=2.9-6.7, Co=1.5-0.5wt% (n=5). Magnetic susceptibility (R. Bartoschewitz, Bart) log χ (× 10-9 m3/kg) = 4.10

Classification: lunar meteorite (fragmental breccia)

Specimens: 1.24 g on deposit at IfP, main mass with Bart. Polished thin sections with Bart + IfP

Data from:
  MB110
  Table 0
  Line 0:
Origin or pseudonym:desert
Place of purchase:Beijing, China
Date:P 2019
Mass (g):5.5
Pieces:1
Class:Lunar (frag. breccia)
Shock stage:high
Fayalite (mol%):38.3 (20.4-85.0; n=7)
Ferrosilite (mol%):37.9 (14.6-54.8; n=4)
Wollastonite (mol%):17.4-35.2
Magnetic suscept.:4.1
Classifier:R. Bartoschewitz
Type spec mass (g):1.24
Type spec location:IfP
Main mass:Rainer Bartoschewitz
Finder:anonymous
Comments:working name WZD#27; submitted by R. Bartoschewitz
Institutions
   and collections
IfP: Institut für Planetologie, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany (institutional address; updated 23 Jan 2012)
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)
Beijing: Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China (institutional address; updated 16 Oct 2011)
Catalogs:
References: Published in Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9627 approved meteorites from (Northwest Africa) (plus 1865 unapproved names)
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  history:
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