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Northwest Africa 10148
Basic information Name: Northwest Africa 10148
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10148
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 634 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 30 Jun 2015
Writeuphelp
Writeup from MB 104:

Northwest Africa 10148 (NWA 10148)

(Northwest Africa)

Purchased: 2015 Jan

Classification: HED achondrite (Eucrite, monomict)

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

Petrography: (A. Irving and S. Kuehner, UWS) Recrystallized breccia consisting of separated fine grained, granoblastic-textured clasts (up to 4 mm) in a finer recrystallized matrix (~40 vol.%). Minerals are calcic plagioclase, orthopyroxene, clinopyroxene, silica polymorph, ilmenite, chromite and troilite.

Geochemistry: Orthopyroxene (Fs58.4Wo2.8, FeO/MnO = 35, N=1), clinopyroxene (Fs27.0-27.2Wo41.4-42.2, FeO/MnO = 34-37, N = 3). Pyroxene compositional homogeneity was checked by BSE and EDS examination.

Classification: Eucrite (monomict breccia, granoblastic).

Specimens: 20.6 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 2015 Jan
Mass (g):633.7
Pieces:1
Class:Eucrite-mmict
Shock stage:low
Weathering grade:low
Ferrosilite (mol%):58.4; 27.0-27.2
Wollastonite (mol%):2.8; 41.4-42.2
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):20.6
Type spec location:UWB
Main mass:DPitt
Comments:MAC 102; 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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