Meteoritical Bulletin: Entry for Northwest Africa 2048

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Northwest Africa 2048

Basic information

Name: Northwest Africa 2048
This is an OFFICIAL meteorite name.
Abbreviation: NWA 2048
Observed fall: No
Year found: 2003
Country: (Northwest Africa)
Mass: 44.5 g

Classification
history:

Meteoritical Bulletin:	MB 91	(2007)	Diogenite-mmict
Recommended:			Diogenite [explanation]

This is 1 of 522 approved meteorites classified as Diogenite. [show all]
Search for other: Achondrites, Diogenites, and HED achondrites

Comments:

Approved 28 Mar 2007

Writeup

help

Writeup from MB 91:

Northwest Africa 2048

Morocco

Find: 2003

Achondrite (diogenite, monomict)

History: A single stone was found in Morocco and purchased in Rissani, Morocco, in September 2003.

Physical characteristics: The 44.5 g, buff-colored stone is partially fusion-crusted, with moderate desert etching/ weathering.

Petrography: (J. Wittke and T. Bunch, NAU ) Monomict breccia with ~2 mm size orthopyroxene porphyroclasts that are surrounded by recrystallized matrix. Very small (<0.05 mm) olivine, chromite, troilite, plagioclase, and ilmenite grains are scattered throughout the orthopyroxene matrix.

Mineral compositions and geochemistry: Orthopyroxene (Fs₂₅Wo₂; FeO/MnO = 34.6, narrow distribution around this value), with minor olivine (Fa_28.7; FeO/MnO = 51), plagioclase (An₈₃), and chromite (cr# = 68).

Classification: Achondrite (diogenite, monomict breccia); minimal shock, moderate weathering.

Type specimen: A 9.71 g sample is on deposit at NAU. MFarmer holds the main mass.

Data from:
  MB91
  Table 2
  Line 66:

Place of purchase:	Rissani, Morocco
Date:	2003
Mass (g):	44.5
Pieces:	1
Class:	Dio
Classifier:	T. Bunch and J. Wittke, NAU
Type spec mass (g):	9.7
Type spec location:	NAU
Main mass:	MFarmer

Institutions
and collections

NAU: Geology, Bldg 12 Knoles Dr Northern Arizona University, Flagstaff, AZ 86011, United States; Website (institutional address; updated 12 Apr 2012)
MFarmer: Michael Farmer, P.O. Box 86059, Tucson, AZ 85754-6059, United States; Website (private address)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 91, MAPS 42, 413-466 (2007)

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Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9710 approved meteorites from (Northwest Africa) (plus 1853 unapproved names)

Also see:

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Revision
history:

This lists important revisions made to data for this record.

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