header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 22 Nov 2020
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 11097
Basic information Name: Northwest Africa 11097
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11097
Observed fall: No
Year found: 2016
Country: Morocco
Mass:help 13 kg
Classification
  history:
Meteoritical Bulletin:  MB 106  (2018)  LL3
Recommended:  LL3    [explanation]

This is 1 of 347 approved meteorites classified as LL3.   [show all]
Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 26 Jan 2017
Writeuphelp
Writeup from MB 106:

Northwest Africa 11097 (NWA 11097)

Morocco

Purchased: 2016 Dec

Classification: Ordinary chondrite (LL3)

History: Purchased by Ke Zuokai in Dec. 2016 from a Moroccan dealer.

Physical characteristics: The meteorite has a brown fusion crust. Chondrules and clasts ranging from white to dark gray are visible.

Petrography: The thin section shows abundant well-defined chondrules ranging from 0.1 to 1.5 mm, with a few up to 3 mm. Chondrules with porhyritic and barred textures set in a fine-grained matrix. Olivine grains within chondrules often exhibit chemical zonation with Mg-rich cores and Fe-rich rims. Metallic phase accounts for ~2 vol%. Mineral and chondrule clasts are also present.

Geochemistry: Silicates are unequilibrated. Olivine Fa3.1-53.5 (Fa19.4±11.2, PMD=44.1%, n=79); low-Ca pyroxene Fs1.8-31.3Wo0-4.9 (Fs12.3±8.8Wo0.8±1.2, Fs PMD=59.8%, n=35); minor pigeonite Fs17.9-25.5Wo6.0-20.3 and augite Fs10.7-14.0Wo30.2-37.7.

Classification: LL3. classification based on relatively large chondrules and low metal abundance.

Data from:
  MB106
  Table 0
  Line 0:
Place of purchase:Beijing China
Date:P 2016 Dec
Mass (g):13000
Pieces:1
Class:LL3
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):19.4±11.2 (n=79)
Ferrosilite (mol%):12.3±8.8 (n=35); 12.0±1.7 (n=3); 19.8±3.0 (n=2)
Wollastonite (mol%):0.8±1.2 (n=35); 33.0±4.0 (n=3); 9.7±5.5 (n=2)
Classifier:Wu Y., PMO
Type spec mass (g):21
Type spec location:PMO
Main mass:Ke Zuokai
Comments:Submitted by Hsu W.
Institutions
   and collections
PMO: Purple Mountain Observatory, Nanjing, China (institutional address; updated 16 Dec 2011)
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.
Find references in NASA ADS:
Find references in Google Scholar:
Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1522 approved meteorites from Morocco (plus 22 unapproved names) (plus 1 impact crater)

Direct link to this page