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Northwest Africa 11873
Basic information Name: Northwest Africa 11873
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11873
Observed fall: No
Year found: 2008
Country: (Northwest Africa)
Mass:help 7.63 kg
Classification
  history:
Recommended:  LL3-6    [explanation]

This is 1 of 28 approved meteorites classified as LL3-6.   [show all]
Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 30 Jun 2018
Writeuphelp
Writeup from MB 107:

Northwest Africa 11873 (NWA 11873)

(Northwest Africa)

Purchased: 2008 June

Classification: Ordinary chondrite (LL3-6)

History: Purchased from a Moroccan mineral dealer at the mineral show in Sainte-Marie-aux-Mines, France

Physical characteristics: Individual without fusion crust. Brecciation texture with differently colored clasts is visible. One fine-grained, gray, melt-rock clast of about 4 cm stands out.

Petrography: Genomict LL chondritic breccia, consisting of type 3 and type 6 clasts, embedded in a clastic matrix. The matrix also contains intact chondrules. One large melt rock clast occurs, consisting of euhedral igneously zoned olivine grains, embedded in a glassy mesostasis.

Geochemistry: Type 3 clast: Olivine Fa28.2±4.1 (Fa12.9-32.7; n=20). Pyroxene Fs17.2±6.0Wo0.8±0.5 (Fs8.0-24.4Wo0.1-1.7; n=15). Type 6 clast: Olivine Fa29.3±0.4 (Fa28.5-30.0; n=12). Pyroxene Fs23.6±0.4Wo1.5±0.2 (Fs23.1-24.2Wo1.3-1.9; n=9). Olivine in melt rock clast: Fa 11.6-42.2 (n=2).

Data from:
  MB107
  Table 0
  Line 0:
Place of purchase:Sainte-Marie-aux-Mines, France
Date:P 2008 June
Mass (g):7630
Pieces:1
Class:LL3-6
Shock stage:S3
Weathering grade:W3
Fayalite (mol%):28.2; 29.3
Ferrosilite (mol%):17.2; 23.6
Wollastonite (mol%):0.8; 1.5
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, in preparation (2018)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6968 approved meteorites from (Northwest Africa) (plus 2012 unapproved names)

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