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Northwest Africa 10147
Basic information Name: Northwest Africa 10147
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10147
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 4.17 kg
Classification
  history:
Meteoritical Bulletin:  MB 104  (2015)  LL4-melt breccia
Recommended:  LL4-melt breccia    [explanation]

This is the only approved meteorite classified as LL4-melt breccia.
Search for other: L chondrites (type 4-7), LL chondrites, Melted chondrites, Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 30 Jun 2015
Writeuphelp
Writeup from MB 104:

Northwest Africa 10147 (NWA 10147)

(Northwest Africa)

Purchased: 2015 Jan

Classification: LL4-melt breccia

History: Purchased by Darryl Pitt in January 2015 from a dealer in Erfoud, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Composed of clasts containing well-formed chondrules set within a much finer grained matrix containing abundant blebby metal and sulfide. Minerals are olivine, orthopyroxene, clinopyroxene, sodic plagioclase, chlorapatite, chromite, kamacite, taenite and troilite.

Geochemistry: Olivine (Fa27.4-27.7, N = 3), orthopyroxene (Fs22.6-22.7Wo1.3-1.2, N = 3), clinopyroxene (Fs7.5-8.8Wo45.2-45.0, N = 2).

Classification: Ordinary chondrite (LL4 melt breccia).

Specimens: 25.5 g including one polished slice at UWB. The remainder is held by DPitt.

Data from:
  MB104
  Table 0
  Line 0:
Place of purchase:Erfoud
Date:P 2015 Jan
Mass (g):4168
Pieces:1
Class:LL4-melt breccia
Weathering grade:W1
Fayalite (mol%):27.4-27.7
Ferrosilite (mol%):22.6-22.7
Wollastonite (mol%):1.3-1.2
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):25.5
Type spec location:UWB
Main mass:DPitt
Comments:MAC 96; submitted by A. Irving
Institutions
   and collections
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6900 approved meteorites from (Northwest Africa) (plus 2035 unapproved names)

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