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Northwest Africa 10072
Basic information Name: Northwest Africa 10072
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10072
Observed fall: No
Year found: 2014
Country: (Northwest Africa)
Mass:help 25.8 g
Classification
  history:
Meteoritical Bulletin:  MB 104  (2015)  Eucrite-mmict
Recommended:  Eucrite-mmict    [explanation]

This is 1 of 230 approved meteorites classified as Eucrite-mmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 1 May 2015
Writeuphelp
Writeup from MB 104:

Northwest Africa 10072 (NWA 10072)

(Northwest Africa)

Purchased: 2014 Aug

Classification: HED achondrite (Eucrite, monomict)

History: Purchased by Darryl Pitt in August 2014 from a dealer in Erfoud, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Monomict breccia composed of porphyritic eucrite clasts consisting of bladed exsolved pigeonite phenocrysts (up to 3.5 mm long) set within a very fine-grained (10-20 μm), quench-textured matrix containing pigeonite, calcic plagioclase, silica polymorph, ilmenite, Ti-chromite and troilite.

Geochemistry: Orthopyroxene host (Fs56.5-57.6Wo1.6-2.2, FeO/MnO = 32-33, N = 3), clinopyroxene exsolution lamellae (Fs23.8-25.1Wo43.6-42.4, FeO/MnO = 35-36, N = 3).

Classification: Eucrite (monomict, porphyritic basaltic).

Specimens: 5.3 g including one polished thin section at UWB. The remainder is held by DPitt.

Data from:
  MB104
  Table 0
  Line 0:
Place of purchase:Erfoud
Date:P 2014 Aug
Mass (g):25.8
Pieces:1
Class:Eucrite-mmict
Shock stage:low
Weathering grade:low
Ferrosilite (mol%):56.5-57.6; 23.8-25.1
Wollastonite (mol%):1.6-2.2; 43.6-42.4
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):5.3
Type spec location:UWB
Main mass:D. Pitt
Comments:MAC 101; 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 7101 approved meteorites from (Northwest Africa) (plus 2004 unapproved names)

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