header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 6 Dec 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 7370
Basic information Name: Northwest Africa 7370
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7370
Observed fall: No
Year found: 2009
Country: Mali
Mass:help 2.29 kg
Classification
  history:
Meteoritical Bulletin:  MB 101  (2012)  Diogenite-olivine
Recommended:  Diogenite-olivine    [explanation]

This is 1 of 12 approved meteorites classified as Diogenite-olivine.   [show all]
Search for other: Achondrites, Diogenites, and HED achondrites
Comments: Approved 12 Sep 2012
Writeuphelp
Writeup from MB 101:

Northwest Africa 7370 (NWA 7370)        ~22°50’N, ~6°11’W

Gao, Mali

Found: 2009 May

Classification: HED achondrite (Diogenite, olivine)

History: Four meteorites were discovered by an anonymous finder east of Agaraktem, Mali, in May 2009.

Physical characteristics: Four almost complete individuals totaling 2290 g.

Petrography: (R. Bartoschewitz, Bart) Polycrystalline olivine clusters (~50 vol%) of idiomorphic to hypidiomorphic cystals (<1 mm, average about 0.1 mm) distributed in schlieren-like bands within a matrix of xenolithic to hypidiomorphic pyroxene grains (about 1 mm), with rare intergranular feldspar. Chromite and metal occurs dominantly within pyroxene and olivine grains.

Geochemistry: (R. Bartoschewitz, Bart; P. Appel, B. Mader, Kiel) Pyroxene Fs23.8-25.4Wo2.0-4.4, olivine Fa29.3-30.3, feldspar An76-83Ab1-5. Chromite Al2O3 = 14.4-15.4, TiO2 = 0.9-1.1, MgO = 4.1-4.8; Kamacite Ni = 0.3-1.1, Co = 0.7-0.9 (all in wt%).

Classification: Olivine diogenite, S1, very fresh

Specimens: Type specimen 20 g Kiel; 10 g Bart

Data from:
  MB101
  Table 0
  Line 0:
State/Prov/County:Gao
Origin or pseudonym:Agaraktem
Date:2009 May
Latitude:~22°50'N
Longitude:~6°11'W
Mass (g):2290
Pieces:4
Class:Diogenite-olivine
Shock stage:S1
Fayalite (mol%):29.8 (29.3-30.3; n=7)
Ferrosilite (mol%):24.6 (23.8-25.4; n=23)
Wollastonite (mol%):2.9 (2.0-4.4; n=23)
Magnetic suscept.:3.51
Classifier:R. Bartoschewitz, Bart; P. Appel, B. Mader, Kiel
Type spec mass (g):20.2
Type spec location:Kiel
Main mass:SBuhl
Finder:anonymous
Comments:Submitted by Bartoschewitz
Institutions
   and collections
Kiel: Geologisches und Mineralogisches Museum, Institut für Geowissenschaften, Christian-Albrechts-Universität Kiel, Ludewig-Mayn-Str. 10, D-24118 Kiel, Germany, Germany (institutional address; updated 13 Sep 2013)
Bart: Bartoschewitz Meteorite Laboratory, Lehmweg 53, D-38518 Gifhorn, Germany; Website (private address; updated 4 Aug 2013)
SBuhl: Meteorite Recon (Mr. S Buhl), Muehlendamm 86, 22087 Hamburg, Germany (private address; updated 14 May 2010)
Catalogs:
References: Published in Meteoritical Bulletin, no. 101, MAPS 50, 1661, September 2015
Find references in NASA ADS:
Find references in Google Scholar:
Geography:

Mali
Coordinates:
     Recommended::   (22° 50'N, 6° 11'W)

Statistics:
     This is 1 of 4 approved meteorites from Gao, Mali (plus 1 unapproved name)
     This is 1 of 29 approved meteorites from Mali (plus 1 unapproved name)
Proximity search:
Find nearby meteorites: enter search radius (km):

Direct link to this page