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Northwest Africa 11525
Basic information Name: Northwest Africa 11525
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11525
Observed fall: No
Year found: 2017
Country: (Northwest Africa)
Mass:help 806 g
Meteoritical Bulletin:  MB 106  (2018)  L4-melt breccia
Recommended:  L4-melt breccia    [explanation]

This is 1 of 10 approved meteorites classified as L4-melt breccia.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Melted chondrites, Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 6 Dec 2017
Writeup from MB 106:

Northwest Africa 11525 (NWA 11525)

(Northwest Africa)

Purchased: 2017

Classification: Ordinary chondrite (L4, melt breccia)

History: Purchased in June 2017 from Aziz Habibi in Erfoud, Morocco

Physical characteristics: Microprobe examination of a polished mount shows relict, equilibrated chondrules and a fine grained recrystallized groundmass.

Petrography: (C. Agee) Microprobe examination of a polished mount shows relict, equilibrated type 4 chondrite clasts in a fine grained groundmass recrystallized from a melt.

Geochemistry: (C. Agee, UNM) Olivine Fa23.2±3.7, Fe/Mn=52±2, n=8; low-Ca pyroxene Fs21.2±1.3Wo2.1±0.9, Fe/Mn=31±2, n=7; Ab73.8±1.2An21.9±1.4Or4.2±0.3, n=3.

Classification: L4-melt breccia

Specimens: 24.5 g including a probe mounts on deposit at UNM, DPitt holds the main mass.

Data from:
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2017
Mass (g):805.9
Class:L4-melt breccia
Shock stage:S4
Weathering grade:W3
Fayalite (mol%):23.2±3.7
Ferrosilite (mol%):21.2±1.3
Wollastonite (mol%):2.1±0.9
Classifier:C. Agee, UNM
Type spec mass (g):24.5
Type spec location:UNM
Main mass:Darryl Pitt
Comments:Field name MVCH292; submitted by C. Agee, UNM
   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)
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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     This is 1 of 9368 approved meteorites from (Northwest Africa) (plus 1875 unapproved names)

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