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Northwest Africa 6292
Basic information Name: Northwest Africa 6292
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 6292
Observed fall: No
Year found: 2010
Country: (Northwest Africa)
Mass:help 725 g
Meteoritical Bulletin:  MB 100  (2012)  Achondrite-ung 
Recommended:  Achondrite-ung    [explanation]

This is 1 of 142 approved meteorites classified as Achondrite-ung.   [show all]
Search for other: Achondrites, Ungrouped achondrites
Comments: Approved 28 Aug 2011
Writeup from MB 100:

Northwest Africa 6292 (NWA 6292)

(Northwest Africa)

Found: 2010

Classification: Ungrouped achondrite

History: Purchased in June 2010 by Marc Jost from a Moroccan dealer

Physical characteristics: A single brownish, dense 725 g stone

Petrography: (A. Irving and S. Kuehner, UWS) Protogranular texture. Aggregate of predominantly olivine with subordinate orthopyroxene, clinopyroxene, chlorapatite, chromite, partly altered kamacite and troilite.

Geochemistry: Olivine (Fa30.2-30.3; FeO/MnO = 51.7-53.5), orthopyroxene (Fs24.1-24.3Wo1.9-2.0; FeO/MnO = 36.9-41.1), clinopyroxene (Fs9.4Wo44.1; FeO/MnO = 27.9; Al2O3 = 0.75 wt.%; Cr2O3 = 0.91 wt.%). Oxygen isotopes (D. Rumble, CIW): δ17O 2.42; δ18O 4.55; Δ17O +0.031 per mil

Classification: Achondrite (ungrouped, brachinite-like). This specimen has the same mineralogy and oxygen isotopic composition as NWA 5400, and is paired with it.

Specimens: A total of 21 g and one polished thin section are on deposit at UWS. The main mass is held by Marc Jost.

Data from:
  Table 1
  Line 1331:
Origin or pseudonym:Northwest Africa
Place of purchase:Marrakech
Date:P 2010 Apr 19
Mass (g):725
Weathering grade:moderate
Fayalite (mol%):30.2-30.3
Ferrosilite (mol%):24.1-24.3; 9.4
Wollastonite (mol%):1.9-2.0; 44.1
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):20
Type spec location:UWS
Main mass:M. Jost
Comments:d17O 2.42; d18O 4.55; D17O 0.031; paired with NWA 5400; SJS 10012; submitted by A. Irving
Plots: O isotopes:  
   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)
CIW: Carnegie Insitution Washington, Geophysical Laboratory, 5251 Broad Branch Rd., NW, Washington DC 20015, United States (institutional address)
SJS: Space Jewels Switzerland, 2555 Brügg, Switzerland (private address; updated 3 Jan 2010)
References: Published in Meteoritical Bulletin, no. 100, MAPS 49, E1-E101 (2014)
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Photos from the Encyclopedia of Meteorites:
Sergey Vasiliev   
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Gregor H.   

     This is 1 of 9559 approved meteorites from (Northwest Africa) (plus 1872 unapproved names)

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