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Northwest Africa 15016
Basic information Name: Northwest Africa 15016
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 15016
Observed fall: No
Year found: 2022
Country: (Northwest Africa)
Mass:help 40 g
Classification
  history:
Recommended:  Martian (shergottite)    [explanation]

This is 1 of 281 approved meteorites (plus 2 unapproved names) classified as Martian (shergottite).   [show all]
Search for other: Martian meteorites
Comments: Approved 20 Jun 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 15016 (NWA 15016)

(Northwest Africa)

Purchased: 2022

Classification: Martian meteorite (Shergottite)

History: The meteorite was purchased from a meteorite dealer in Algeria.

Physical characteristics: Grayish to slighly greenish rock without fusion crust.

Petrography: The meteorite displays a coarse-grained diabasic texture predominantly composed of up to 800 µm sized irregularly zoned pyroxene and interstitial maskelynite. Maskelynite contains myrmekitic intergrowths of silica, Ca-pyroxene, and ilmenite. Minor phases include partly exsolved ilmenite, troilite, and merrillite. The meteorite is highly shocked and contains shock melt veins and pockets.

Geochemistry: complex zoned pyroxene: Fs37.9±15.7Wo27.7±9.1 (Fs19.8-65.7Wo14.2-37.8, FeO/MnO=32±3, n=17); maskelynite: An50.2±3.8Ab48.0±3.3Or1.8±0.5 (An45.2-55.9Ab42.8-52.5Or1.0-2.5, n=10)

Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Algeria
Date:P 2022
Mass (g):40
Pieces:1
Class:Martian (shergottite)
Shock stage:high
Weathering grade:low
Ferrosilite (mol%):37.9
Wollastonite (mol%):27.7
Classifier:A. Greshake, MNB
Type spec mass (g):8
Type spec location:MNB
Main mass:Giles Smithson
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:
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Robert Smart         
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8559 approved meteorites from (Northwest Africa) (plus 1896 unapproved names)

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