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Northwest Africa 12591
Basic information Name: Northwest Africa 12591
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12591
Observed fall: No
Year found: 2015
Country: Morocco
Mass:help 1169 g
Classification
  history:
Meteoritical Bulletin:  MB 108  (2020)  L6
Recommended:  L6    [explanation]

This is 1 of 12192 approved meteorites (plus 7 unapproved names) classified as L6.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 3 May 2019
Writeuphelp
Writeup from MB 108:

Northwest Africa 12591 (NWA 12591)

Morocco

Find: 2015

Classification: Ordinary chondrite (L6)

History: The specimen was found by nomads in Morocco. The stone was purchased by Adam Ait Hiba, then by Zsolt Kereszty in 2015 at Ensisheim Meteorite Show. In the end Balazs Kormos bought it in August 2018.

Physical characteristics: An individual pyramidal shaped dark brown stone (1169.2 g) with weathered fusion crust.

Petrography: (D. Rezes, CSFK) Chondrite with poorly delineated chondrules. Olivine shows planar fractures and weak mosaicism. Planar deformation features and shock-induced twinnings are rare. There are black-colored thin shock veins. Limonitic patches are observable in 90% of the thin section.

Geochemistry: (D. Rezes, A. Kereszturi and M. Szabo, CSFK) Mineral chemistry: Olivine Fa24.64±0.25, N=18; Low-Ca pyroxene Fs20.94±0.85Wo1.57±0.25, N=26; Feldspar Ab83.31±0.72, N=14

Classification: Ordinary chondrite (L6), shock stage S3, weathering W3

Specimens: 40 g on deposit at CSFK, B. Kormos holds the main mass.

Data from:
  MB108
  Table 0
  Line 0:
Date:2015
Mass (g):1169.2
Pieces:1
Class:L6
Shock stage:S3
Weathering grade:W3
Fayalite (mol%):24.64±0.25 (N=18)
Ferrosilite (mol%):20.94±0.85 (N=26)
Wollastonite (mol%):1.57±0.25 (N=26)
Classifier:D. Rezes, CSFK
Type spec mass (g):40
Type spec location:CSFK
Main mass:B. Kormos
Comments:Work name: KBNWAx1; submitted by Daniel Rezes
Institutions
   and collections
CSFK: Research Center for Astronomy and Earth Sciences, H-1121 Budapest, Konkoly Thege Miklós út 15-17.l Hungary, Hungary (institutional address; updated 7 Apr 2015)
Catalogs:
References: Published in Meteoritical Bulletin, no. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150
Find references in NASA ADS:
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Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1904 approved meteorites from Morocco (plus 27 unapproved names) (plus 1 impact crater)

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