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Northwest Africa 2516
Basic information Name: Northwest Africa 2516
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 2516
Observed fall: No
Year found: 2004
Country: (Northwest Africa)
Mass:help 296 g
Classification
  history:
Meteoritical Bulletin:  MB 89  (2005)  Eucrite
MetBase:  v. 7.1  (2006)  Eucrite
Recommended:  Eucrite    [explanation]

This is 1 of 468 approved meteorites (plus 1 unapproved name) classified as Eucrite.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Writeuphelp
Writeup from MB online:

Northwest Africa 2516

Algeria

Found 2004

Achondrite (eucrite)

Two stones weighing 224.6 g and 71.2 g respectively were purchased in Erfoud in September 2004. Fusion crust is fissured and altered. Classification and mineralogy (M. Bourot-Denise, MNHNP): the dominant texture is gabbroic to microgabbroic, with twinned pyroxene crystals (pigeonite-augite) of variable sizes, and large plagioclase laths. Orthopyroxene makes up large clasts, with abundant opaque (sulfide) inclusions. Areas of silica with irregular outlines are commonly associated with plagioclase, and contain blebs of oxides (ilmenite and chromite), troilite and metal. The most abundant mineral is pigeonite Fs51.6 Wo4.4, with exsolution of augite Fs26.7 Wo41.6; orthopyroxene Fs56.4 Wo2.9. Magnetic susceptibility 3.23 (J. Gattacceca, CEREGE, Aix en Provence) Weathering grade W2. Specimens: type specimen 20.9 g and one polished mount, MNHNP; main mass with PThomas.

Data from:
  MB89
  Table 7
  Line 304:
Place of purchase:Erfoud
Date:1 Sep 2004
Mass (g):295.74
Pieces:2
Class:Euc
Weathering grade:W2
Ferrosilite (mol%):56.4
Classifier:M. Bourot-Denise, MNHNP
Type spec mass (g):20.9
Main mass:Thomas
Comments:Pigeonite Fs51.6Wo4.4; ?=3.23
Institutions
   and collections
CEREGE: CEREGE BP 80 Avenue Philibert, Technopole de l'Arbois 13545 Aix-en-Provence Cedex 4 France, France (institutional address; updated 29 Oct 2018)
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:
CreditPhotos
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 7271 approved meteorites from (Northwest Africa) (plus 1984 unapproved names)

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