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Northwest Africa 2794
Basic information Name: Northwest Africa 2794
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 2794
Observed fall: No
Year found: 2005
Country: Morocco
Mass:help 145 g
Classification
  history:
Meteoritical Bulletin:  MB 90  (2006)  Howardite
Recommended:  Howardite    [explanation]

This is 1 of 376 approved meteorites classified as Howardite.   [show all]
Search for other: Achondrites, HED achondrites, and Howardites
Comments: Approved 3 Feb 2006
Writeuphelp
Writeup from MB 90:

Northwest Africa 2794

Morocco

Find: 2005

Achondrite (howardite)

History: A 145 g single stone with partial fusion crust was purchased in Erfoud, Morocco, in 2005.

Petrography: (J. Wittke and T. Bunch, NAU) Contains fine to medium cumulate basalt clast size (<3 mm diameter) and even finer-grained subophitic basalts (<1 mm) with diogenite fragments up to 8 mm.

Geochemistry: Cumulate basalt pyroxenes: Orthopyroxene (Fs49.4–64.7Wo2.1–2.5), exsolved pigeonite (Fs45.1–54.4Wo13.1–6.7), Ca pyroxene (Fs36.0–47.1Wo19.6–24.1). All pyroxene FeO/MnO = 29–34 (n = 27). Diogenite: Orthopyroxene (Fs26.7–30Wo2.2– 2.5; FeO/MnO = 24–30).

Classification: Achondrite (howardite); moderate weathering and low to moderate shock.

Specimens: A 21.4 g type specimen is on deposit at NAU. GHupé holds the main mass.

Data from:
  MB90
  Table 2
  Line 101:
Place of purchase:Erfoud, Morocco
Date:2005
Mass (g):145
Pieces:1
Class:How
Shock stage:low-medium
Weathering grade:moderate
Type spec mass (g):21.4
Institutions
   and collections
NAU: Geology, Bldg 12 Knoles Dr Northern Arizona University, Flagstaff, AZ 86011, United States; Website (institutional address; updated 12 Apr 2012)
GHupé: Gregory M. Hupé, 9003 Placid Lakes Blvd., Lake Placid, FL 33852, United States; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 90, MAPS 41, 1383-1418 (2006)
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Photos:
CreditPhotos
Photos from the Encyclopedia of Meteorites:
The Hupe Collection   
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Andreas Grünemeyer   
METEORITES AUSTRALIA   
Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1459 approved meteorites from Morocco (plus 21 unapproved names) (plus 1 impact crater)

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