MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 24 Apr 2024
Search for: Search type: Search limits: Display: Publication:
Text help
Starts with
Sounds like
Falls  Non-NWAs
What's new
  in the last:
Limit to approved meteorite names
Search text:  
Northwest Africa 11966
Basic information Name: Northwest Africa 11966
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11966
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 157.1 g
Meteoritical Bulletin:  MB 107  (2018)  Lunar (Feldsp. Breccia)
Recommended:  Lunar (Feldsp. Breccia)    [explanation]

This is 1 of 340 approved meteorites classified as Lunar (Feldsp. Breccia).   [show all]
Search for other: Lunar meteorites
Comments: Approved 23 Sep 2018
Writeup from MB 107:

Northwest Africa 11966 (NWA 11966)

(Northwest Africa)

Purchased: 2015

Classification: Lunar meteorite (feldspathic breccia)

History: Purchased by Jay Piatek on April 27, 2015 from a Moroccan meteorite dealer.

Physical characteristics: Single stone, fresh fusion-crusted exterior. A saw cut reveals a fragmental breccia with many white feldspathic clasts and a large lithic clast set in a dark-gray groundmass.

Petrography: (C. Agee, UNM) This meteorite is a breccia of fragmental pyroxene, olivine, plagioclase grains. There are many domains that are fine-grained and cataclastic with shock melt and vesicles.

Geochemistry: (C. Agee, UNM) olivine Fa35.8±5.0, Fe/Mn=98±11, n=10; pigeonite Fs33.6±5.3Wo12.6±6.8, Fe/Mn=58±3, n=8; augite Fs29.0±2.9Wo34.8±4.3, Fe/Mn=57±1, n=2; plagioclase An96.4±0.9, n=7; Shock melt (20 μm defocused electron beam, proxy for bulk meteorite composition): SiO2=43.4±0.4, TiO2=0.18±0.06, Al2O3=31.0±1.2, Cr2O3=0.06±0.03, MgO=3.0±0.6, FeO=3.6±0.8, MnO=0.05±0.03, CaO=17.5±0.5, Na2O=0.35±0.04, K2O=0.07±0.02 (all wt%), n=7.

Classification: Lunar feldspathic breccia

Specimens: 20.1 g including a probe mount on deposit at UNM, Jay Piatek holds the main mass.

Data from:
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2015
Mass (g):157.13
Class:Lunar (Feldsp. Breccia)
Shock stage:high
Weathering grade:low
Fayalite (mol%):35.8±5.0
Ferrosilite (mol%):33.6±5.3, 29.0±2.9
Wollastonite (mol%):12.6±6.8, 34.8±4.3
Classifier:C. Agee, UNM
Type spec mass (g):20.1
Type spec location:UNM
Main mass:Jay Piatek
Comments:Field name JP-84; 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)
References: Published in Meteoritical Bulletin, no. 107, MAPS 55, 460-462
Find references in NASA ADS:
Find references in Google Scholar:

     This is 1 of 9710 approved meteorites from (Northwest Africa) (plus 1853 unapproved names)

Direct link to this page