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Northwest Africa 7250
Basic information Name: Northwest Africa 7250
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7250
Observed fall: No
Year found: 2012
Country: Morocco
Mass:help 816 g
Classification
  history:
Meteoritical Bulletin:  MB 100  (2012)  LL6
Recommended:  LL6    [explanation]

This is 1 of 2788 approved meteorites (plus 1 unapproved name) classified as LL6.   [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 13 Mar 2012
Writeuphelp
Writeup from MB 100:

Northwest Africa 7250 (NWA 7250)

Morocco

Purchased: 2012

Classification: Ordinary chondrite (LL6)

History: Purchased by Blaine Reed in Tucson, February 2012.

Physical characteristics: 816 g fusion-crusted stone. Interior shows angular breccia clasts to 5 mm set in a light-gray matrix, with scattered fine metal/sulfide, but also a few larger sulfide grains to 2 mm.

Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows dominant olivine, with some orthopyroxene, clinopyroxene, and ubiquitous albitic plagioclase crystals to 100 μm, a few indistinct chondrules, one very large mixed-phase sulfide grain.

Geochemistry: (C. Agee and N. Wilson, UNM) Olivine Fa29.9±1.4, Fe/Mn=61±3 (n=13).

Classification: Ordinary chondrite (LL6), possible mixed LL6-chondrite lithologies, weathering grade W1.

Specimens: 24.0 g including a probe mount on deposit at UNM, Reed holds the main mass.

Data from:
  MB100
  Table 1
  Line 1694:
Place of purchase:Tucson
Date:P 2012
Mass (g):816
Pieces:1
Class:LL6
Weathering grade:W1
Fayalite (mol%):29.9±1.4
Classifier:C.Agee
Type spec mass (g):24
Type spec location:UNM
Main mass:Reed
Comments:Submitted by C. Agee
Institutions
   and collections
UNM: Institute of Meteoritics MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 USA, United States; Website (institutional address; updated 12 Feb 2015)
Reed: Blaine Reed, P.O. Box 1141, Delta, CO 81416, United States; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 100, MAPS 49, E1-E101 (2014)
Find references in NASA ADS:
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Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1460 approved meteorites from Morocco (plus 21 unapproved names) (plus 1 impact crater)

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