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 7127
Basic information Name: Northwest Africa 7127
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7127
Observed fall: No
Year found: 2011
Country: (Northwest Africa)
Mass:help 71.5 g
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  Howardite
Recommended:  Howardite    [explanation]

This is 1 of 372 approved meteorites classified as Howardite.   [show all]
Search for other: Achondrites, HED achondrites, and Howardites
Comments: Approved 6 Sep 2013
Writeuphelp
Writeup from MB 102:

Northwest Africa 7127 (NWA 7127)

(Northwest Africa)

Purchased: 2011 Aug

Classification: HED achondrite (Howardite)

History: Purchased by Gary Fujihara in 2011 August from a Moroccan dealer.

Petrography: (A. Irving and S. Kuehner, UWS) Fresh fragmental breccia composed of lithic clasts and crystal debris from basaltic eucrites and diogenites. Eucrite clasts consist of exsolved pigeonite, ferroan augite, calcic plagioclase, silica polymorph, ilmenite, chromite, troilite and minor metal.

Geochemistry: Diogenitic orthopyroxene (Fs23.3Wo1.9, FeO/MnO = 30), exsolved eucritic pigeonite (orthopyroxene host Fs58.1-59.6Wo4.9-6.8, FeO/MnO = 34; clinopyroxene exsolution lamella Fs26.9Wo42.3, FeO/MnO = 36), more ferroan augite (Fs33.1Wo38.9, FeO/MnO = 34).

Classification: Howardite.

Data from:
  MB102
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2011 Aug
Mass (g):71.45
Pieces:1
Class:Howardite
Shock stage:low
Weathering grade:low
Ferrosilite (mol%):23.3; 58.1-59.6; 26.9; 33.1
Wollastonite (mol%):1.9; 4.9-6.8; 42.3; 38.9
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):14.3
Type spec location:UWB
Main mass:G. Fujihara
Comments:GF11-15; submitted by A. Irving
Institutions
   and collections
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
Catalogs:
References: Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
Find references in NASA ADS:
Find references in Google Scholar:
Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Andreas Grünemeyer   
Public domain photographs:
Gary Fujihara      
Geography: 
Coordinates:Unknown.

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

Direct link to this page