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Northwest Africa 12507
Basic information Name: Northwest Africa 12507
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12507
Observed fall: No
Year found: 2018
Country: (Northwest Africa)
Mass:help 10.5 g
Classification
  history:
Recommended:  Ureilite    [explanation]

This is 1 of 514 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Comments: Approved 14 Sep 2019
Writeuphelp
Writeup from MB 108:

Northwest Africa 12507 (NWA 12507)

(Northwest Africa)

Purchased: 2018

Classification: Ureilite

History: (Ziyao Wang) Purchased by Ziyao Wang from Aziz Habibi in Erfoud, Morocco, 2018.

Physical characteristics: (Ziyao Wang) one oblate stone of 10.5 g without fusion crust.

Petrography: (R. Bartoschewitz, Bart) olivine grains up to 5 mm with tiny metal inclusions and intgerstitial silicates, graphite, chromite, and metal.

Geochemistry: (R. Bartoschewitz, Bart, P. Appel and B. Mader, Kiel) Olivine Fa10.6±0.2 (n=22); pyroxene Fs9.8±0.2Wo1.6±0.3 (n=5); augite En51Fs4Wo45 (n=2); chromite CRAL82, FFM51 (n=2). Kamacite Ni=6.9, Co=0.6 (n=3); troilite Ni=0.2 (n=4) (all wt-%). Magnetic susceptibility (R. Bartoschewitz, Bart) log χ (× 10-9 m3/kg) = 4.64

Classification: ureilite

Specimens: 2.3 g on deposit at Kiel, Ziyao Wang holds the main mass, and 2 g with Bart.

Data from:
  MB108
  Table 0
  Line 0:
Origin or pseudonym:desert
Place of purchase:Erfoud, Morocco
Date:P 2018
Mass (g):10.5
Pieces:1
Class:Ureilite
Fayalite (mol%):10.6±0.2 (n=22)
Ferrosilite (mol%):9.8±0.2 (n=5)
Wollastonite (mol%):1.6±0.3
Magnetic suscept.:4.64
Classifier:R. Bartoschewitz
Type spec mass (g):2.3
Type spec location:Kiel
Main mass:Ziyao Wang
Finder:anonymous
Comments:working name WZ95; 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, Lehmweg 53, D-38518 Gifhorn, Germany; Website (private address; updated 4 Aug 2013)
Catalogs:
References: Published in Meteoritical Bulletin, no. 108, in preparation (2019)
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)
Wang Ziyao         
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6968 approved meteorites from (Northwest Africa) (plus 2012 unapproved names)

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