header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 29 May 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:
Limit to approved meteorite names
Search text:  
Northwest Africa 11679
Basic information Name: Northwest Africa 11679
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11679
Observed fall: No
Year found: 2014
Country: Morocco
Mass:help 98 g
Classification
  history:
Meteoritical Bulletin:  MB 107  (2018)  EL6
Recommended:  EL6    [explanation]

This is 1 of 130 approved meteorites classified as EL6.   [show all]
Search for other: EL chondrites, Enstatite chondrites, Enstatite chondrites (type 4-7), and Enstatite-rich meteorites
Comments: Approved 27 Mar 2018
Writeuphelp
Writeup from MB 107:

Northwest Africa 11679 (NWA 11679)

Morocco, Laayoun, (Northwest Africa)

Purchased: May 2014

Classification: Enstatite chondrite (EL6)

History: Collected by nomads in Western Sahara and purchased by Nicola Castellano at the Genova Mineral Fair in May 2014 from a Moroccan dealer.

Physical characteristics: A single piece weighing 98 g with no fusion crust.

Petrography: (V. Moggi Cecchi, G. Pratesi, S. Caporali, UniFi); A fine-grained texture, with a pyroxene-dominant matrix and minor plagioclase is visible in thin section. No relic chondrules are visible. Kamacite and troilite are the main opaque phases, partially weathered to iron oxides. Accessory phases are alabandite and daubreelite as blades in troilite.

Geochemistry: EMP (V. Moggi Cecchi, G. Pratesi, S. Caporali, UniFi) Orthopyroxene (Fs0.3En98.1Wo1.6), plagioclase (An17.9Or4.8); Si in kamacite = 0.5 wt.%, Ti in troilite = 6.2 wt.%

Classification: Enstatite chondrite (EL6); strong weathering. EL classification is suggested by the presence of alabandite, An content of plagioclase and Si content of kamacite. Possibly paired with NWA 11413, NWA 11414, NWA 11415, NWA 11416.

Specimens: A total of 19.6 g specimen is on deposit at MSN-FI. Castellano holds the main mass.

Data from:
  MB107
  Table 0
  Line 0:
State/Prov/County:Morocco, Laayoun
Place of purchase:Genova
Date:P May 2014
Mass (g):98
Pieces:1
Class:EL6
Ferrosilite (mol%):0.3
Wollastonite (mol%):1.6
Classifier:V. Moggi Cecchi, S. Caporali, G. Pratesi, MSN-FI
Type spec mass (g):19.6
Type spec location:MSN-FI
Main mass:Castellano
Comments:Submitted by Vanni Moggi Cecchi
Institutions
   and collections		 MSN-FI: Museo di Storia Naturale “La Specola”, Sez. Mineralogia – Sistema Museale dell'Università degli Studi di Firenze Via Giorgio La Pira, 4 – 50121 Firenze, Italy; Website (institutional address; updated 24 Oct 2022)
UniFi: Università degli Studi di Firenze, P.zza S. Marco, 4 - 50121 Firenze, Italy (institutional address; updated 14 Sep 2013)
Catalogs:
References: Published in Meteoritical Bulletin, no. 107, MAPS 55, 460-462
Find references in NASA ADS:
Find references in Google Scholar:
Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1973 approved meteorites from Morocco (plus 37 unapproved names) (plus 1 impact crater)

Direct link to this page