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Northwest Africa 5749
Basic information Name: Northwest Africa 5749
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 5749
Observed fall: No
Year found: 2008
Country: (Northwest Africa)
Mass:help 165 g
Classification
  history:
Meteoritical Bulletin:  MB 105  (2016)  LL4-6
Recommended:  LL4-6    [explanation]

This is 1 of 69 approved meteorites classified as LL4-6.   [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 15 Oct 2016
Writeuphelp
Writeup from MB 105:

Northwest Africa 5749 (NWA 5749)

(Northwest Africa)

Purchased: 2008 Dec 12

Classification: Ordinary chondrite (LL4-6)

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

Petrography: (K. Metzler, IfP) Genomict breccia, consisting of LL4 clasts and LL6 clasts, embedded in related fine-grained clastic material. Contains melt rock clasts.

Geochemistry: Olivine compositions from type 4 and type 6 clasts are indistinguishable. Low-Ca pyroxene in type 6 clasts: 26.0±0.8, n=9; Low-Ca pyroxene in type 4 clasts: Fs22.8±2.1, n=8

Data from:
  MB105
  Table 0
  Line 0:
Place of purchase:Hamburg
Date:P 2008 Dec 12
Mass (g):165
Pieces:1
Class:LL4-6
Shock stage:S2
Weathering grade:W3
Fayalite (mol%):29.9±1.1 (28.1-31.8; n=22)
Ferrosilite (mol%):24.5±2.2 (20.3-27.2; n=17)
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
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7385 approved meteorites from (Northwest Africa) (plus 1955 unapproved names)

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