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Northwest Africa 11527
Basic information Name: Northwest Africa 11527
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11527
Observed fall: No
Year found: 2017
Country: Algeria
Mass:help 309 g
Classification
  history:
Meteoritical Bulletin:  MB 106  (2018)  Eucrite-mmict
Recommended:  Eucrite-mmict    [explanation]

This is 1 of 238 approved meteorites classified as Eucrite-mmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 6 Dec 2017
Writeuphelp
Writeup from MB 106:

Northwest Africa 11527 (NWA 11527)

Algeria

Purchased: 2017

Classification: HED achondrite (Eucrite, monomict)

History: Reportedly found in Al Hamada, Algeria, near the Mali border region in May 2017 and purchased in Mauritania in June 2017.

Physical characteristics: Single stone, saw cut reveals light colored, fine grained surface.

Petrography: (C. Agee) Microprobe examination of a polished mount shows approxiamately 60% pyroxene and 35% plagioclase, some brecciation observed.

Geochemistry: (C. Agee, UNM) Augite Fs42.3±2.4Wo25.1±2.7, Fe/Mn=32±1, n=4; low-Ca pyroxene Fs60.2±3.7Wo3.9±4.2, Fe/Mn=32±0, n=3; plagioclase An94.6±0.2, n=3.

Classification: Eucrite, monomict

Specimens: 22 g including a probe mounts on deposit at UNM, DPitt holds the main mass.

Data from:
  MB106
  Table 0
  Line 0:
Place of purchase:Mauritania
Date:P 2017
Mass (g):308.5
Pieces:1
Class:Eucrite-mmict
Shock stage:moderate
Weathering grade:moderate
Ferrosilite (mol%):60.2±3.7, 42.3±2.4
Wollastonite (mol%):3.9±4.2, 25.1±2.7
Classifier:C. Agee, UNM
Type spec mass (g):22
Type spec location:UNM
Main mass:Darryl Pitt
Comments:Field name MVCH294; submitted by C. Agee, UNM
Institutions
   and collections
UNM: Institute of Meteoritics MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 USA, United States; Website (institutional address; updated 12 Feb 2015)
DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States; Website (private address)
Catalogs:
References: Published in Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.
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Geography:

Algeria
Coordinates:Unknown.

Statistics:
     This is 1 of 1017 approved meteorites from Algeria (plus 26 unapproved names) (plus 4 impact craters)

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