header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 14 Sep 2019
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:
Limit to approved meteorite names
Search text:  
Northwest Africa 11724
Basic information Name: Northwest Africa 11724
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11724
Observed fall: No
Year found: 2005
Country: (Northwest Africa)
Mass:help 4.15 kg
Classification
  history:
Recommended:  L6    [explanation]

This is 1 of 10981 approved meteorites (plus 6 unapproved names) classified as L6.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 7 Mar 2018
Writeuphelp
Writeup from MB 107:

Northwest Africa 11724 (NWA 11724)

(Northwest Africa)

Purchased: 2005

Classification: Ordinary chondrite (L6)

History: Purchased by an anonymous collector from a dealer at the Munich Show in 2005, subsequently acquired by the Hollis Collection and then donated to PSF.

Petrography: (A. Irving and S. Kuehner, UWS) Mostly recrystallized with rare remnant chondrules; accessory chlorapatite and merrillite are present. Silicates are extensively stained by weathering products of primary metal and there are cross-cutting Fe hydroxide veinlets.

Geochemistry: Olivine (Fa25.2-25.3, N = 3), orthopyroxene (Fs21.6-21.8Wo1.7-1.1, N = 2), clinopyroxene (Fs8.5-12.7Wo43.8-41.8, N = 2).

Classification: Ordinary chondrite (L6).

Specimens: The entire specimen including one polished thin section is at PSF.

Data from:
  MB107
  Table 0
  Line 0:
Place of purchase:Munich
Date:P 2005
Mass (g):4150
Pieces:1
Class:L6
Shock stage:S2
Weathering grade:W2/3
Fayalite (mol%):25.2-25.3
Ferrosilite (mol%):21.6-21.8
Wollastonite (mol%):1.7-1.1
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):4150
Type spec location:PSF
Main mass:PSF
Comments:Work name CHC18003; submitted by A. Irving
Institutions
   and collections
PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011)
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
Catalogs:
References: Published in Meteoritical Bulletin, no. 107, in preparation (2018)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6900 approved meteorites from (Northwest Africa) (plus 2035 unapproved names)

Direct link to this page