Meteoritical Bulletin: Entry for Northwest Africa 10733

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Northwest Africa 10733

Basic information

Name: Northwest Africa 10733
This is an OFFICIAL meteorite name.
Abbreviation: NWA 10733
Observed fall: No
Year found: 2016
Country: (Northwest Africa)
Mass: 238 g

Classification
history:

Meteoritical Bulletin:	MB 105	(2016)	Howardite
Recommended:			Howardite [explanation]

This is 1 of 451 approved meteorites classified as Howardite. [show all]
Search for other: Achondrites, HED achondrites, and Howardites

Comments:

Approved 7 Jul 2016

Writeup

help

Writeup from MB 105:

Northwest Africa 10733 (NWA 10733)

(Northwest Africa)

Purchased: Apr 2016

Classification: HED achondrite (Howardite)

History: The meteorite was bought in 2016 from a meteorite dealer in Marrakesh, Morocco.

Petrography: The meteorite is a fragmental breccia of dominantly mineral and less abundant lithic clasts (fine and coarse grained basaltic, gabbroic, impact melt clasts) set into finer grained matrix. Main minerals are exsolved pyroxene, unequilibrated eucrite low-Ca pyroxene (Fs_22.3-45.1Wo_1.6-3.1, n=15), diogenetic orthopyroxene (10-15%) and calcic plagioclase. Accessory phases include chromite, silica, and FeNi metal.

Geochemistry: Pyroxene host to augite lamellae: Fs_59.4±3.0Wo_3±0.6(Fs_57.4-63.2Wo_2.3-4.2, n=24, FeO/MnO=30-38); Ca-pyroxene: Fs_32.1±2.2Wo_38.2±2.7(Fs_28.3-36.6Wo_32.9-42.4, n=12, FeO/MnO=27-39); diogenitic pyroxene: Fs_25.6±0.8Wo_3.6±0.4(Fs_24.2-27.1Wo_3.2-4.4, n=8, FeO/MnO=31-35); calcic plagioclase: An_88.2±5.1(An_78.8-93.5, n=15).

Data from:
  MB105
  Table 0
  Line 0:

Place of purchase:	Marrakesh, Morocco
Date:	P Apr 2016
Mass (g):	238
Pieces:	2
Class:	Howardite
Shock stage:	low
Weathering grade:	low
Ferrosilite (mol%):	59.4; 32.1; 25.6
Wollastonite (mol%):	3.0; 38.2; 3.6
Classifier:	A. Greshake, MNB
Type spec mass (g):	21
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. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full

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Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)

Also see:

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Revision
history:

This lists important revisions made to data for this record.

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