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Northwest Africa 14520
Basic information Name: Northwest Africa 14520
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14520
Observed fall: No
Year found: 2021
Country: Algeria
Mass:help 1843 g
Classification
  history:
Recommended:  Martian (shergottite)    [explanation]

This is 1 of 284 approved meteorites (plus 2 unapproved names) classified as Martian (shergottite).   [show all]
Search for other: Martian meteorites
Comments: Approved 15 Dec 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 14520 (NWA 14520)

Algeria

Purchased: 2021

Classification: Martian meteorite (shergottite)

History: Purchased by Zhishu Wang in 2021 from a meteorite dealer

Physical characteristics: A single stone has partial fusion crust. Shock induced melt rock veins are observable in hand specimen.

Petrography: (J. Ji, S. Hu and Y. Lin, IGGCAS) The two major phases in this meteorite are pyroxene (48 area%) and maskelynite (40 area%). Minor phases are merrillite, apatite, ilmenite, troilite and olivine. Most pyroxene grains display zoning features.

Geochemistry: Mineral compositions and geochemistry: (J. Ji, S. Hu and Y. Lin, IGGCAS) Pigeonite: Fs34.2-62.7Wo12-18.9 (n=7), augite: Fs19.5-36.4Wo27.2-38.1 (n=9), Fe/Mn=34.5±5.2 (mole ratio,n=16), maskelynite: An39.7-56.7Ab42.1-55.0 (n=6).

Classification: (J. Ji, S. Hu and Y. Lin, IGGCAS) Martian (shergottite)

Specimens: The main mass is held by Zhishu Wang

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Algeria
Date:P 2021
Mass (g):1843
Pieces:1
Class:Martian meteorite (shergottite)
Shock stage:high
Weathering grade:low
Ferrosilite (mol%):34.2-62.7;19.5-36.4
Wollastonite (mol%):12-18.9;27.2-38.1
Classifier:J. Ji, S. Hu and Y. Lin, IGGCAS
Type spec mass (g):29.5
Type spec location:IGGCAS
Main mass:Zhishu Wang
Comments:Submitted by J. Ji, S. Hu and Y. Lin, IGGCAS
Institutions
   and collections
IGGCAS: Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China (institutional address; updated 16 Oct 2011)
Catalogs:
References: Published in Meteoritical Bulletin, no. 110, in preparation (2021)
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Photos:
CreditPhotos
Public domain photographs:
Ji Jianglong      
Geography:

Algeria
Coordinates:Unknown.

Statistics:
     This is 1 of 1223 approved meteorites from Algeria (plus 29 unapproved names) (plus 4 impact craters)

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