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Northwest Africa 7350
Basic information Name: Northwest Africa 7350
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7350
Observed fall: No
Year found: 2012
Country: Morocco
Mass:help 37.5 g
Classification
  history:
Meteoritical Bulletin:  MB 101  (2012)  Mesosiderite-B2
Recommended:  Mesosiderite-B2    [explanation]

This is 1 of 7 approved meteorites classified as Mesosiderite-B2.   [show all]
Search for other: Class B mesosiderites, Mesosiderites, and Metal-rich meteorites
Comments: Approved 14 Aug 2012
Writeuphelp
Writeup from MB 101:

Northwest Africa 7350 (NWA 7350)

Morocco

Purchased: May 2012

Classification: Mesosiderite (group B2)

History: Purchased by Sean Tutorow in Morocco, May 2012.

Physical characteristics: Single stone, irregular dark exterior with some iron staining, saw cut reveals dark brecciated texture with iron-oxide veins.

Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows approximately 60% silicates and 40% oxidized metal. Silicate mineralogy dominated by pyroxene with ~15% plagioclase, accessory troilite, silica and olivine, remnant kamacite preserved within oxidized metal domains, ~80% of metal oxidized.

Geochemistry: (C. Agee and N. Wilson, UNM) Low Ca-pyroxene Fs26.3±9.2Wo1.2±0.5, Fe/Mn=29±2, n=16; olivine Fa24.7, Fe/Mn=54, n=1; plagioclase Or0.3±0.0Ab8.0±0.1An91.7±0.1, n=2

Classification: Mesosiderite, type B2.

Specimens: 8.91 g including a probe mount on deposit at UNM, Sean Tutorow holds the main mass.

Data from:
  MB101
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P May 2012
Mass (g):37.48
Pieces:1
Class:Mesosiderite-B2
Weathering grade:W3
Fayalite (mol%):24.7
Ferrosilite (mol%):26.3±9.2
Wollastonite (mol%):1.2±0.5
Classifier:C. Agee, UNM
Type spec mass (g):8.91
Type spec location:UNM
Main mass:Sean Tutorow
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)
Catalogs:
References: Published in Meteoritical Bulletin, no. 101, MAPS 50, 1661, September 2015
Find references in NASA ADS:
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
John Tanner   
Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1556 approved meteorites from Morocco (plus 22 unapproved names) (plus 1 impact crater)

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