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Northwest Africa 14886
Basic information Name: Northwest Africa 14886
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14886
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 102 g
Classification
  history:
Recommended:  L3-melt breccia    [explanation]

This is 1 of 4 approved meteorites classified as L3-melt breccia.   [show all]
Search for other: L chondrites, L chondrites (type 3), Melted chondrites, Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 9 May 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 14886 (NWA 14886)

(Northwest Africa)

Purchased: 2021 Dec

Classification: Ordinary chondrite (L3, melt breccia)

History: The meteorite was purchased from a meteorite dealer in Talsint, Morocco.

Physical characteristics: Dark brownish rock without fusion crust.

Petrography: Chondritic melt breccia composed of up to 1 cm sized type 3 clasts set into in a melt rock matrix. Type 3 fragments show a chondritic texture with well-defined, mostly flattened and packed chondrules with an apparent mean diameter of about 0.7 mm. Several chondrules are crosscut by shock melt veins. The fine-grained shock melt is mostly recrystallized and contains characteristic FeNi metal and sulfide spherules. Entrained mineral fragments show resorption features.

Classification: L3-melt breccia. L group from magnetic susceptibility Rochette et al., 2003.

Bibliography:
  • Rochette P., Sagnotti L., Bourot-Denise M., Consolmagno G., Folco L., Gattacceca J., Osete M.L., and Pesonen L. (2003) Magnetic classification of stony meteorites: 1. Ordinary chondrites. Meteorit. Planet. Sci. 38 251-268. (link)
Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Talsint, Morocco
Date:P 2021 Dec
Mass (g):102
Pieces:1
Class:L3-melt breccia
Shock stage:S3
Weathering grade:W2
Fayalite (mol%):14.4±8.2 (0.6-23.4, n=18)
Ferrosilite (mol%):12.0±7.3 (1.9-21.1, n=14)
Wollastonite (mol%):0.6±0.2 (0.3-1.1, n=14)
Magnetic suscept.:4.67
Classifier:A. Greshake, MNB
Type spec mass (g):20.4
Type spec location:MNB
Main mass:Noreddine Azelmat
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)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8495 approved meteorites from (Northwest Africa) (plus 1899 unapproved names)

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