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Northwest Africa 14872
Basic information Name: Northwest Africa 14872
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14872
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 48 g
Classification
  history:
Recommended:  CR2    [explanation]

This is 1 of 184 approved meteorites classified as CR2.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), and CR chondrites
Comments: Approved 9 May 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 14872 (NWA 14872)

(Northwest Africa)

Purchased: 2021

Classification: Carbonaceous chondrite (CR2)

History: The meteorite was purchased from a meteorite dealer in Algeria.

Physical characteristics: Dark brownish rock with some fusion crust.

Petrography: The meteorite is composed of abundant large, mostly porphyritic type I chondrules (apparent mean diameter about 750 µm) set into a fine-grained iron-rich matrix. Few type II chondrules and one CAI have been detected. Type I chondrules are often metal-decorated and contain abundant metal blebs. Contains up to 500 µm sized matrix lumps. Sulfides are present in type II chondrules and the matrix.

Geochemistry: olivine in type I chondrules: Fa1.7±1.2 (Fa0.7-4.1, Cr2O3: 0.46±0.11 wt%, n=18; low-Ca pyroxene: Fs1.8±1.2Wo1.0±0.2 (Fs0.7-3.8Wo0.8-1.5, n=14); olivine in type II chondrules: Fa26.8±11.2 (Fa12.0-44.6, n=10). Matrix analyses yield FeO=32.4±1.4 wt% and an average total of 85.2.7±1.1 wt% (5 µm defocused beam, N=6), the latter indicating the presence of hydrous minerals.

Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Algeria
Date:P 2021
Mass (g):48
Pieces:1
Class:CR2
Shock stage:S1
Weathering grade:W2
Fayalite (mol%):1.7; 26.8
Ferrosilite (mol%):1.8
Wollastonite (mol%):1.0
Classifier:A. Greshake, MNB
Type spec mass (g):9.7
Type spec location:MNB
Main mass:Mateusz Szyszka
Comments:Submitted by Ansgar Greshake
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
Catalogs:
References: Published in Meteoritical Bulletin, no. 111, in preparation (2022)
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Jay Buscio         
Robert Smart            
Public domain photographs:
Ansgar Greshake      
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8636 approved meteorites from (Northwest Africa) (plus 1884 unapproved names)

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