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Northwest Africa 5675
Basic information Name: Northwest Africa 5675
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 5675
Observed fall: No
Year found: 2008
Country: (Northwest Africa)
Mass:help 967 g
Classification
  history:
Meteoritical Bulletin:  MB 105  (2016)  Eucrite
Recommended:  Eucrite    [explanation]

This is 1 of 560 approved meteorites (plus 1 unapproved name) classified as Eucrite.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 23 Jul 2016
Writeuphelp
Writeup from MB 105:

Northwest Africa 5675 (NWA 5675)

(Northwest Africa)

Purchased: 2008

Classification: HED achondrite (Eucrite)

History: The meteorite was bought in 2008 from a local meteorite dealer in Erfoud, Morocco.

Petrography: The meteorite is a brecciated eucrite with up to 3 cm sized basaltic and gabbroic clasts, black appearing recrystallized melt clasts and mineral fragments set into a finer grained matrix. Dominant mineral phases are calcic plagioclase and exsolved pyroxene; minor phases include chromite, troilite, and silica.

Geochemistry: low-Ca pyroxene: Fs56.3±1.5Wo5.9±1.8 (Fs54.2-58.1Wo3.8-8.1, n=7, FeO/MnO=29-32); Ca-pyroxene: Fs38.2±5.5Wo28.0±6.7 (Fs25.9-44.7Wo20.7-42.5, n=16, FeO/MnO=29-32); calcic plagioclase: An89.4±1.2 (An87.9-92.2, n=16)

Data from:
  MB105
  Table 0
  Line 0:
Place of purchase:Erfoud, Morocco
Date:P 2008
Mass (g):967
Pieces:1
Class:Eucrite
Shock stage:low
Weathering grade:moderate
Ferrosilite (mol%):56.3; 38.2
Wollastonite (mol%):5.9; 28.0
Classifier:A. Greshake, MNB
Type spec mass (g):27.0
Type spec location:MNB
Main mass:Marc Jost
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
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)
Dirk Hohmann Photo added 19 Apr 2022
Photo added 19 Apr 2022
eraserhead   
Michael Mulgrew Photo added 19 Apr 2022
Space Jewels   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8559 approved meteorites from (Northwest Africa) (plus 1896 unapproved names)

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