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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:
Meteoritical Bulletin:  MB 111  (2023)  L3
Recommended:  L3    [explanation]

This is 1 of 859 approved meteorites (plus 2 unapproved names) 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 10 Jun 2023)
Catalogs:
References: Published in Gattacceca J., McCubbin F. M., Grossman J. N., Schrader D. L., Chabot N. L., D’Orazio M., Goodrich C., Greshake A., Gross J., Joy K. H., Komatsu M. and Miao B. (2023) The Meteoritical Bulletin, No. 111. Meteoritics & Planetary Science 58, 901–904. ?
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Photos:
CreditPhotos
Public domain photographs:
Jerome Gattacceca         
Geography:

Algeria
Coordinates:Unknown.

Statistics:
     This is 1 of 1376 approved meteorites from Algeria (plus 31 unapproved names) (plus 4 impact craters)

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