Meteoritical Bulletin: Entry for Northwest Africa 15016

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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: 40 g

Classification
history:

Recommended:

Martian (shergottite) [explanation]

This is 1 of 298 approved meteorites (plus 2 unapproved names) classified as Martian (shergottite). [show all]
Search for other: Martian meteorites

Comments:

Approved 20 Jun 2022

Writeup

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: Fs_37.9±15.7Wo_27.7±9.1(Fs_19.8-65.7Wo_14.2-37.8, FeO/MnO=32±3, n=17); maskelynite: An_50.2±3.8Ab_48.0±3.3Or_1.8±0.5(An_45.2-55.9Ab_42.8-52.5Or_1.0-2.5, 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)

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Photos:

Credit	Photos
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 9305 approved meteorites from (Northwest Africa) (plus 1873 unapproved names)

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