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Northwest Africa 11994
Basic information Name: Northwest Africa 11994
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11994
Observed fall: No
Year found: 2017
Country: (Northwest Africa)
Mass:help 2.16 kg
Classification
  history:
Recommended:  L3    [explanation]

This is 1 of 640 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 9 Oct 2018
Writeuphelp
Writeup from MB 107:

Northwest Africa 11994 (NWA 11994)

(Northwest Africa)

Purchased: 2017 Jan

Classification: Ordinary chondrite (L3)

Petrography: (K. Metzler, IfP) Ordinary chondrite of low petrologic type consisting of closely packed chondrules and metal grains with very low amounts of interchondrule matrix. Cluster chondrite texture. Chondrule shapes are mostly ellipsoidal with parallel alignment.

Geochemistry: Mineral compositions and geochemistry: The mean olivine composition is Fa22.1±3.1 (Fa13.0-26.5; n=32); the mean low-Ca pyroxene composition is Fs11.6±5.2Wo1.0±1.1 (Fs2.0-21.0Wo0.0-5.0; n=28)

Classification: L chondrite based on olivine composition with a strong peak at ~Fa24. PMD of Fa values = 14, i.e. petrologic subtype estimated to be 3.8.

Data from:
  MB107
  Table 0
  Line 0:
Place of purchase:Tinduf, Algeria
Date:P 2017 Jan
Mass (g):2160
Pieces:1
Class:L3
Shock stage:S4
Weathering grade:W2
Fayalite (mol%):22.1±3.1
Ferrosilite (mol%):11.6±5.2
Wollastonite (mol%):1.0±1.1
Classifier:K. Metzler, IfP
Type spec mass (g):20
Type spec location:IfP
Main mass:Manuel Nieto Sanchez, Albacete, Spain
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 6438 approved meteorites from (Northwest Africa) (plus 2025 unapproved names)

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