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Northwest Africa 5750
Basic information Name: Northwest Africa 5750
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 5750
Observed fall: No
Year found: 2008
Country: (Northwest Africa)
Mass:help 135 g
Classification
  history:
Meteoritical Bulletin:  MB 105  (2016)  Mesosiderite-C
Recommended:  Mesosiderite-C    [explanation]

This is 1 of 8 approved meteorites classified as Mesosiderite-C.   [show all]
Search for other: Class C mesosiderites, Mesosiderites, and Metal-rich meteorites
Comments: Approved 28 Oct 2016
Writeuphelp
Writeup from MB 105:

Northwest Africa 5750 (NWA 5750)

(Northwest Africa)

Purchased: 2008 Dec 12

Classification: Mesosiderite (group C)

History: Purchased from a Moroccan dealer at the mineral fair (CCH) in Hamburg, Germany.

Petrography: (K. Metzler, IfP) Coarse-grained breccia, mainly consisting of orthopyroxenite clasts (up to 2.5 cm) and some plagioclase fragments, embedded in a metal-rich matrix of related debris. Overall metal abundance about 20 vol%; orthopyroxenite clasts contain <5 vol% metal. Plagioclase abundance <10 vol%.

Geochemistry: Plagioclase composition: An94.3±1.6 (92.3-97.4; n=16)

Classification: Mesosiderite based on texture, metal abundance and mineral chemistry. Type C mesosiderite based on low abundance of plagioclase (<10 vol%) and high abundance of low-Ca pyroxene.

Data from:
  MB105
  Table 0
  Line 0:
Place of purchase:Hamburg
Date:P 2008 Dec 12
Mass (g):135
Pieces:1
Class:Mesosiderite-C
Shock stage:low
Weathering grade:low
Ferrosilite (mol%):28.2±1.1 (26.7-30.6; n=22)
Classifier:A. Bischoff, IfP
Type spec mass (g):20
Type spec location:IfP
Main mass:anonymous
Comments:Submitted by K. Metzler (IfP)
Institutions
   and collections
IfP: Institut für Planetologie, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany (institutional address; updated 23 Jan 2012)
Catalogs:
References: Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6900 approved meteorites from (Northwest Africa) (plus 2035 unapproved names)

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