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Northwest Africa 5018
Basic information Name: Northwest Africa 5018
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 5018
Observed fall: No
Year found: 2007
Country: (Northwest Africa)
Mass:help 254 g
Classification
  history:
Meteoritical Bulletin:  MB 105  (2016)  Eucrite
Recommended:  Eucrite    [explanation]

This is 1 of 616 approved meteorites (plus 1 unapproved name) classified as Eucrite.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 31 Mar 2016
Writeuphelp
Writeup from MB 105:

Northwest Africa 5018 (NWA 5018)

(Northwest Africa)

Purchased: 2007

Classification: HED achondrite (Eucrite)

History: The meteorite was found by an anonymous finder in northwest Africa and bought by the main mass holder in Morocco.

Physical characteristics: One fragment partly covered with fusion crust weighing 254 g was found.

Petrography: The meteorite is an unbrecciated basalt consisting dominantly of coarse-grained exsolved pyroxene and calcic plagioclase. Minor phases include ilmenite, chromite and silica. Few regions appear more fine-grained and plagioclase poor than the major part of the meteorite.

Geochemistry: Low-Ca pyroxene: Fs62.5±0.9Wo2.2±0.5 (Fs60.8-64.1Wo1.2-3.1, n=21, FeO/MnO=30-34); Ca-pyroxene: Fs28.0±1.1Wo43.0±1.3 (Fs26.9-31.1Wo39.6-44.5, n=20, FeO/MnO=28-36); calcic plagioclase: An87.7±4.4 (An78.5-91.1, n=12)

Data from:
  MB105
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2007
Mass (g):254
Pieces:1
Class:Eucrite
Shock stage:low
Weathering grade:low
Ferrosilite (mol%):62.5; 28.0
Wollastonite (mol%):2.2; 43.0
Classifier:A. Greshake, MNB
Type spec mass (g):22
Type spec location:MNB
Main mass:Carsten Giessler
Comments:Submitted by Ansgar Greshake
Institutions
   and collections		 MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
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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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
André Knöfel   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9914 approved meteorites from (Northwest Africa) (plus 1841 unapproved names)

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