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Northwest Africa 4612
Basic information Name: Northwest Africa 4612
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 4612
Observed fall: No
Year found: 2006
Country: (Northwest Africa)
Mass:help 26.4 g
Classification
  history:
Meteoritical Bulletin:  MB 100  (2012)  L3
Recommended:  L3    [explanation]

This is 1 of 709 approved meteorites classified as L3.   [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 29 May 2012
Writeuphelp
Writeup from MB 100:

Northwest Africa 4612 (NWA 4612)

(Northwest Africa)

Purchased: May 2006

Classification: Ordinary chondrite (L3)

History: The meteorite was found by an anonymous person in northwest Africa and bought by H. Strufe in Erfoud, Morocco.

Physical characteristics: Three brown fragments totaling 26.4 g.

Petrography: The sample is an unbrecciated chondrite with unequilibrated olivine and pyroxene in chondrules as well as in the matrix. The chondrules are well defined and have widely varying textural types, including BO, BP, PO, POP, and PP.

Geochemistry: Olivine, Fa0.4-19.8; pyroxene, Fs1.9-15.6.

Classification: Ordinary chondrite (L3); S2, W3. Type L-classification is also based on chondrule diameter (mean about 0.6 mm) and low metal content.

Specimens: A total of 6.6 g plus one polished thin section are on deposit at MNB.

Data from:
  MB100
  Table 1
  Line 1176:
Place of purchase:Erfoud, Morooco
Date:P May 2006
Mass (g):26.4
Pieces:3
Class:L3
Shock stage:S2
Weathering grade:W3
Fayalite (mol%):11.1 (0.4-19.8)
Ferrosilite (mol%):5.2 (1.9-15.6)
Classifier:A. Greshake, MNB
Type spec mass (g):6.6
Type spec location:MNB
Main mass:H. Strufe
Comments:Submitted by Ansgar Greshake
Institutions
   and collections
MNB: Museum f├╝r Naturkunde, Invalidenstra├če 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
Catalogs:
References: Published in Meteoritical Bulletin, no. 100, MAPS 49, E1-E101 (2014)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

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

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