Meteoritical Bulletin: Entry for Northwest Africa 5915

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Northwest Africa 5915

Basic information

Name: Northwest Africa 5915
This is an OFFICIAL meteorite name.
Abbreviation: NWA 5915
Observed fall: No
Year found: 2008
Country: (Northwest Africa)
Mass: 78.9 g

Classification
history:

Recommended:

Eucrite [explanation]

This is 1 of 554 approved meteorites (plus 1 unapproved name) classified as Eucrite. [show all]
Search for other: Achondrites, Eucrites, and HED achondrites

Comments:

Approved 17 Oct 2021

Writeup

Writeup from MB 110:

Northwest Africa 5915 (NWA 5915)

(Northwest Africa)

Purchased: 2008

Classification: HED achondrite (Eucrite)

History: The meteorite was purchased from a local meteorite dealer in Erfoud, Morocco.

Physical characteristics: Grayish rock with some fusion crust.

Petrography: Coarse-grained, unbrecciated basalt displaying an ophitic texture of up to 1 mm sized exsolved pyroxene and often lath-shaped calcic plagioclases. Minor phases are silica, chromite, ilmenite, and FeS. No metallic iron has been detected. The meteorite contains some shock melt veins.

Geochemistry: low-Ca pyroxene: Fs_57.4±0.8Wo_4.4±1.0(Fs_56.7-59.2Wo_3.4-5.9, FeO/MnO=25-34, n=9); Ca-pyroxene: Fs_26.8±0.2Wo_42.6±0.2(Fs_26.5-27.0Wo_42.3-42.9, FeO/MnO=26-29, n=5); calcic plagioclase: An_86.4±3.1(An_80.2-90.1, n=10)

Data from:
  MB110
  Table 0
  Line 0:

Place of purchase:	Erfoud, Morocco
Date:	P 2008
Mass (g):	78.9
Pieces:	1
Class:	Eucrite
Shock stage:	moderate
Weathering grade:	low
Ferrosilite (mol%):	57.4; 26.8
Wollastonite (mol%):	4.4; 42.6
Classifier:	A. Greshake, MNB
Type spec mass (g):	16.4
Type spec location:	MNB
Main mass:	Hanno Strufe
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. 110, in preparation (2021)

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Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 8394 approved meteorites from (Northwest Africa) (plus 1899 unapproved names)

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