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Northwest Africa 11872
Basic information Name: Northwest Africa 11872
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11872
Observed fall: No
Year found: 2007
Country: (Northwest Africa)
Mass:help 6.22 kg
Classification
  history:
Meteoritical Bulletin:  MB 107  (2018)  L4
Recommended:  L4    [explanation]

This is 1 of 1709 approved meteorites (plus 24 unapproved names) classified as L4.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 30 Jun 2018
Writeuphelp
Writeup from MB 107:

Northwest Africa 11872 (NWA 11872)

(Northwest Africa)

Purchased: 2007 June

Classification: Ordinary chondrite (L4)

History: Purchased from a moroccan mineral dealer at the meteorite show in Ensisheim, France.

Physical characteristics: Individual with about 50% fusion crust and deep, well-developed regmaglypts. The fusion crust and old fracture planes appear light brown, in contrast to the shock-darkened interior which is exposed on younger fracture planes.

Petrography: Brecciated shock-darkened ordinary chondrite with well-preserved chondrules. Silicates with tiny metal and sulfide veins along cracks and grain boundaries. Shock-deformed apatite with enclosed silicate clasts. One large sulfide grain (1.2 cm) was found.

Data from:
  MB107
  Table 0
  Line 0:
Place of purchase:Ensisheim, France
Date:P 2007 June
Mass (g):6220
Pieces:1
Class:L4
Shock stage:S4
Weathering grade:W1
Fayalite (mol%):24.5±0.5 (23.8-26.0; n=14)
Ferrosilite (mol%):24.0±3.1 (14.2-27.1; n=15)
Wollastonite (mol%):0.5±0.3 (0.2-1.3; n=15)
Classifier:K. Metzler, 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. 107, MAPS 55, 460-462
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7937 approved meteorites from (Northwest Africa) (plus 1960 unapproved names)

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