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 11894
Basic information Name: Northwest Africa 11894
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11894
Observed fall: No
Year found: 2016
Country: (Northwest Africa)
Mass:help 72.3 g
Classification
  history:
Recommended:  Ureilite    [explanation]

This is 1 of 475 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Comments: Approved 3 Aug 2018
Writeuphelp
Writeup from MB 107:

Northwest Africa 11894 (NWA 11894)

(Northwest Africa)

Purchased: 2016

Classification: Ureilite

History: Specimen was purchased from a dealer in Dakhla, Western Moroccan Sahara.

Petrography: olivine (~80%) with reduced rims, pyroxene (pigeonite) (~15%), metals, and carbon phases. Olivines are up to 1 mm in size. Graphite and diamonds were found.

Geochemistry: Mineral Compositions and Geochemistry: Olivine cores, Fa19.2±0.0; rims Fa12.6±0.0). Pyroxenes, Fs13.7±0.1Wo 7.4±0.1).

Classification: Ureilite

Specimens: 15.3 g including a thin section at UWO.

Data from:
  MB107
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2016
Mass (g):72.3
Pieces:1
Class:Ureilite
Shock stage:moderate
Weathering grade:medium
Fayalite (mol%):19.2±0.0 (n=10, core); 12.6 ± 0.0 (n=10, rim)
Ferrosilite (mol%):15.9±0.2 (N=10)
Wollastonite (mol%):10.7±0.3 (N=10)
Classifier:M. Spencer, F. Cao, UWO
Type spec mass (g):15.3
Type spec location:UWO
Main mass:S. DeBoer
Comments:Submitted by A. Bouvier
Institutions
   and collections
UWO: University of Western Ontario, Department of Earth Sciences, BGS 1026, 1151 Richmond St. N, London, Ontario, Canada N6A 5B7, Canada (institutional address; updated 18 Jul 2015)
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