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Northwest Africa 4398
Basic information Name: Northwest Africa 4398
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 4398
Observed fall: No
Year found: 2005
Country: (Northwest Africa)
Mass:help 228 g
Classification
  history:
Meteoritical Bulletin:  MB 92  (2007)  Eucrite-mmict
Recommended:  Eucrite-mmict    [explanation]

This is 1 of 238 approved meteorites classified as Eucrite-mmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 24 Jul 2007
Writeuphelp
Writeup from MB 92:

Northwest Africa 4398

Morocco

Find: 2005

Achondrite (eucrite, monomict)

History:The meteorite was recovered by an anonymous finder in northwest Africa and purchased by the main mass holder in Midelt, Morocco.

Physical characteristics:A single stone of 228 g was recovered.

Petrography: (A. Greshake, MNB). The meteorite displays a largely unbrecciated basaltic texture with calcic plagioclase and exsolved low-Ca pyroxene being the major phases. Minor phases include silica, ilmenite, and Al,Ti-rich chromite.

Mineral compositions: Plagioclase (An78.2-87.2) and pyroxene (Fs31.2-61.1Wo4.6-40.5).

Classification:Achondrite (eucrite, monomict); moderate shock, minimal weathering.

Type specimens: A total of 20.3 g of sample plus one polished thin section are on deposit at MNB. Ralew holds the main mass.

Data from:
  MB92
  Table 2
  Line 68:
Place of purchase:Tagounite, Morocco
Date:2005
Mass (g):228
Pieces:1
Class:Euc
Type spec mass (g):20.3
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
Ralew: Stefan Ralew, Kunibertstraße 29, 12524 Berlin, Germany; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 92, MAPS 42, 1647-1694 (2007)
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)
bphd   
Geography: 
Coordinates:Unknown.

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

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