header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 3 Jun 2023
Search for: Search type: Search limits: Display: Publication:
Names
Text help
Places
Classes
Years
Contains
Starts with
Exact
Sounds like
NonAntarctic
Falls  Non-NWAs
What's new
  in the last:
Include past classifications in search
Limit to approved meteorite names
Search text:  
Northwest Africa 11948
Basic information Name: Northwest Africa 11948
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11948
Observed fall: No
Year found: 2018
Country: (Northwest Africa)
Mass:help 260 g
Classification
  history:
Meteoritical Bulletin:  MB 107  (2018)  LL4-6
Recommended:  LL4-6    [explanation]

This is 1 of 79 approved meteorites classified as LL4-6.   [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 3 Aug 2018
Writeuphelp
Writeup from MB 107:

Northwest Africa 11948 (NWA 11948)

(Northwest Africa)

Purchased: 2018

Classification: Ordinary chondrite (LL4-6)

History: The meteorite was purchased from a local meteorite dealer in Erfoud, Morocco.

Physical characteristics: Brownish individual with some patches of fusion crust.

Petrography: The meteorite is a chondritic breccia consisting of clastic LL4 type matrix and embedded LL6 clasts. Plagioclase grain size in LL6 clasts is about 60 µm.

Geochemistry: type 4 lithology: olivine: Fa27.3±0.2, n=12; pyroxene: Fs20.6±3.8Wo1.2±0.7 (Fs14.1-23.7Wo0.5-2.0, n = 20); type 6 lithology: olivine: Fa27.2±0.2, n=11; pyroxene: Fs22.6±0.3Wo 3.5±0.7, n=10

Data from:
  MB107
  Table 0
  Line 0:
Place of purchase:Erfoud, Morocco
Date:P 2018
Mass (g):260
Pieces:1
Class:LL4-6
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):27.3; 27.2
Ferrosilite (mol%):20.6; 22.6
Wollastonite (mol%):1.2; 3.5
Magnetic suscept.:3.71
Classifier:A. Greshake, MNB
Type spec mass (g):29.1
Type spec location:MNB
Main mass:Harald Stehlik
Comments:Submitted by Ansgar Greshake
Institutions
   and collections		 MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
Stehlik: Harald Stehlik, 1220 Wien, Austria (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 107, MAPS 55, 460-462
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9116 approved meteorites from (Northwest Africa) (plus 1873 unapproved names)

Direct link to this page