header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 14 Nov 2018
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 11889
Basic information Name: Northwest Africa 11889
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11889
Observed fall: No
Year found: 2017
Country: (Northwest Africa)
Mass:help 75 g
Classification
  history:
Recommended:  CM2    [explanation]

This is 1 of 504 approved meteorites classified as CM2.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), CM chondrites, and CM-CO clan chondrites
Comments: Approved 3 Aug 2018
Writeuphelp
Writeup from MB 107:

Northwest Africa 11889 (NWA 11889)

(Northwest Africa)

Purchased: 2017

Classification: Carbonaceous chondrite (CM2)

Physical characteristics: Dark stone. Cut surface reveals homogeneous dark interior.

Petrography: (J. Gattacceca, CEREGE) Chondrules with average size 180±70 μm (N=20) set in a abundant fine grained iron rich matrix. Opaques are magnetite and troilite. No metal was observed. Low microprobe analyses totals in the matrix indicate the presence of phyllosilicates.

Geochemistry: Olivine Fa1.0-46.6.

Classification: CM2

Specimens: 23.5 g and a polished section at CEREGE. Main mass with R. Lenssen.

Data from:
  MB107
  Table 0
  Line 0:
Place of purchase:Morocco/Western Sahara
Date:P 2017
Mass (g):75
Pieces:1
Class:CM2
Fayalite (mol%):12.9±19.4 (N=4)
Ferrosilite (mol%):1.3 (N=1)
Wollastonite (mol%):0.9
Magnetic suscept.:4.97
Classifier:J. Gattacceca, CEREGE
Type spec mass (g):23.5
Type spec location:CEREGE
Main mass:R. Lenssen
Comments:work name RL04; submitted by Jérôme Gattacceca
Institutions
   and collections
CEREGE: CEREGE BP 80 Avenue Philibert, Technopole de l'Arbois 13545 Aix-en-Provence Cedex 4 France, France (institutional address; updated 29 Oct 2018)
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 6505 approved meteorites from (Northwest Africa) (plus 2021 unapproved names)

Direct link to this page