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Northwest Africa 14825
Basic information Name: Northwest Africa 14825
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14825
Observed fall: No
Year found: 2021
Country: Algeria
Mass:help 1360 g
Classification
  history:
Recommended:  L3    [explanation]

This is 1 of 811 approved meteorites (plus 1 unapproved name) classified as L3.   [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 8 May 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 14825 (NWA 14825)

Algeria

Purchased: 2021

Classification: Ordinary chondrite (L3)

History: Found in Algeria. Bought by Jean Redelsperger from Mohamed Elguirah in 2021.

Physical characteristics: A single dark stone without fusion crust. The stone contains a ~ 2x3 cm white clast. Cut surface reveals a dark interior with white clasts to several mm.

Petrography: (J. Gattacceca, CEREGE) Black chondrite with pervasive silicate darkening. Some parts have a cluster texture (Metzler, 2012). Opaque minerals are metal and troilite.

Geochemistry: Both the cluster chondrite lithology and the more common type 3 lithology are unequilibrated and have similar silicate composition distribution. Olivine Fa14.3±11.6, range Fa1.8-27.5, Cr2O3 0.14±0.11 wt.% (n=8). Low-Ca pyroxene Fs12.5±10.8Wo2.3±2.0, range Fs1.2-33.0 (n=8).

Classification: Ordinary chondrite (L3). L group based on magnetic susceptibility.

Specimens: Type specimen at CEREGE. Main mass with Jean Redelsperger.

Bibliography:
  • Metzler K. (2012) Ultrarapid chondrite formation by hot chondrule accretion? Evidence from unequilibrated ordinary chondrites. Meteorit. Planet. Sci. 47, 2193–2217 (link)
Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2021
Mass (g):1360
Pieces:1
Class:L3
Weathering grade:W0
Fayalite (mol%):14.3±11.6 (n=8)
Ferrosilite (mol%):12.5±10.8 (n=8)
Wollastonite (mol%):2.3±2.0
Magnetic suscept.:4.51
Classifier:J. Gattacceca, CEREGE
Type spec mass (g):27
Type spec location:CEREGE
Main mass:Jean Redelsperger
Finder:anonymous
Comments:work name JR117; submitted by Jérôme Gattacceca
Institutions
   and collections		 CEREGE: CEREGE BP 80 Avenue Philibert, Technopole de l'Arbois 13545 Aix-en-Provence Cedex 4 France, France (institutional address; updated 29 Oct 2018)
Catalogs:
References: Published in Meteoritical Bulletin, no. 111, in preparation (2022)
Find references in NASA ADS:
Find references in Google Scholar:
Photos:
CreditPhotos
Public domain photographs:
Jerome Gattacceca         
Geography:

Algeria
Coordinates:Unknown.

Statistics:
     This is 1 of 1277 approved meteorites from Algeria (plus 29 unapproved names) (plus 4 impact craters)

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