Meteoritical Bulletin: Entry for Northwest Africa 2515

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Northwest Africa 2515

Basic information

Name: Northwest Africa 2515
This is an OFFICIAL meteorite name.
Abbreviation: NWA 2515
Observed fall: No
Year found: 2004
Country: (Northwest Africa)
Mass: 218 g

Classification
history:

Meteoritical Bulletin:	MB 89	(2005)	Diogenite
MetBase:	v. 7.1	(2006)	Diogenite
Recommended:			Diogenite [explanation]

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

Writeup

Writeup from MB online:

Northwest Africa 2515

Tata area, Morocco

Found August 2004

Achondrite (diogenite)

One entirely crusted stone, weighing 217.6 g was purchased in Erfoud in 2004 September. Classification and mineralogy (M. Bourot-Denise, MNHNP): the major mineral (95 vol%) is orthopyroxene, in large crystals. Plagioclase is rare, making blebs (<50 µm) in spaces between pyroxene crystals, opaque blebs (Fe-Ni, troilite, chromite) are aligned inside pyroxene crystals; a few silica areas. Orthopyroxene is very homogeneous, Fs_{26.5 ± 0.8} Wo_{3.3
± 0.3}. Magnetic susceptibility 3.13 (J. Gattacceca, CEREGE, Aix en Provence). Estimated shock stage S3; weathering grade W3. Specimens: type specimen 22.5 g and one polished mount, MNHNP; main mass with PThomas.

Data from:
  MB89
  Table 7
  Line 303:

Place of purchase:	Erfoud
Date:	1 Sep 2004
Mass (g):	217.62
Pieces:	1
Class:	Dio
Shock stage:	S3
Weathering grade:	W3
Ferrosilite (mol%):	26.5
Classifier:	M. Bourot-Denise, MNHNP
Type spec mass (g):	22.5
Main mass:	Thomas
Comments:	Rare plagioclase and opaques, ?=3.13

Institutions
and collections

CEREGE: CEREGE BP 80 Avenue Philibert, Technopole de l'Arbois 13545 Aix-en-Provence Cedex 4 France, France (institutional address; updated 10 Jun 2023)
MNHNP: Museum National d'Histoire Naturelle, IMPMC-CP52, 57 rue Cuvier, 75005 Paris, France, France; Website (institutional address)
PThomas: Philippe Thomas, Meteoritica, La Chave, 07690 St André en Vivarais, France (private address)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 89, MAPS 40, A201-A263 (2005)

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Photos:

Credit	Photos
Photos uploaded by members of the Encyclopedia of Meteorites. (Caution, these are of unknown reliability)
Andreas Grünemeyer

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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