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Northwest Africa 6265
Basic information Name: Northwest Africa 6265
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 6265
Observed fall: No
Year found: 2010
Country: (Northwest Africa)
Mass:help 400 g
Classification
  history:
Meteoritical Bulletin:  MB 100  (2012)  Eucrite-pmict
Recommended:  Eucrite-pmict    [explanation]

This is 1 of 344 approved meteorites classified as Eucrite-pmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 19 Sep 2011
Writeuphelp
Writeup from MB 100:

Northwest Africa 6265 (NWA 6265)

(Northwest Africa)

Purchased: Apr 2010

Classification: HED achondrite (Eucrite, polymict)

Petrography: (A. Irving and S. Kuehner, UWS): Fresh fragmental breccia composed mostly of cumulate eucrite mineral debris with some polymineralic cumulate eucrite and basaltic eucrite clasts, plus sparse diogenite clasts.

Geochemistry: Exsolved pigeonite (lamellae of clinopyroxene within host orthopyroxene), silica, calcic plagioclase, minor fayalitic olivine (Fa84.7-87.1), ilmenite and troilite. In most pigeonite grains the clinopyroxene lamellae are Fs11.5-12.2Wo45.2-44.7 (FeO/MnO = 19.8-24.4) and host orthopyroxene is Fs33.3-33.5Wo1.6-2.2 (FeO/MnO = 27.4-29.3), but in some more ferroan matrix grains the clinopyroxene lamellae are Fs29.0Wo42.3 (FeO/MnO = 32.4) and host orthopyroxene is Fs61.4Wo3.9 (FeO/MnO = 32.1). Orthopyroxene in diogenite clasts is Fs29.4-31.7Wo2.8-4.0 (FeO/MnO = 27.7-28.0).

Data from:
  MB100
  Table 1
  Line 1315:
Origin or pseudonym:Morocco
Date:P Apr 2010
Mass (g):400
Pieces:1
Class:Eucrite-pmict
Shock stage:low
Weathering grade:low
Fayalite (mol%):84.7-87.1
Ferrosilite (mol%):29.4-31.7
Wollastonite (mol%):2.8-4.0
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):20
Type spec location:UWS
Main mass:M. Cimala
Comments: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)
Catalogs:
References: Published in Meteoritical Bulletin, no. 100, MAPS 49, E1-E101 (2014)
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Woreczko Jan & Wadi   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7101 approved meteorites from (Northwest Africa) (plus 2004 unapproved names)

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