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Northwest Africa 2624
Basic information Name: Northwest Africa 2624
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 2624
Observed fall: No
Year found: 2004
Country: (Northwest Africa)
Mass:help 241 g
Classification
  history:
Meteoritical Bulletin:  MB 89  (2005)  Ureilite
MetBase:  v. 7.1  (2006)  Ureilite
Recommended:  Ureilite    [explanation]

This is 1 of 573 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Writeuphelp
Writeup from MB online:

Northwest Africa 2624

GHupé

Northwest Africa

Purchased 2004 August

Achondrite (ureilite)

A 241 g single, mostly crusted stone, was purchased in Erfoud, Morocco. Description and classification (T. Bunch and J. Wittke, NAU): equigranular, fine-grained (< 0.8 mm) typical ureilite. Olivine is highly fractured with closely spaced, subparallel fractures normal to [001]. Fractures apparently served as channel ways for reducing (smelting) activity; grain edges have a saw tooth appearance of alternating, greater reduced rims together with deposits of carbonaceous-metal-silicate-masses (CMSM) that permeated fractures and less-reduced rims that are between fractures.  Olivine cores, Fa19.6, rims are Fa9.8-13.9; low-Ca pigeonite, Fs16.8Wo2.9-3.8; high silica glass in CMSM, SiO2 = 78.8 wt. % and Al2O3 = 15.4 wt. %. Primary metal inclusions in olivine, Ni = 2.5 wt. % and Cr = 0.60 wt. %; reduction-derived metal, Ni = < 0.45 wt. %. Moderate level of reduction (R3); weathering is very low grade and the shock level is S2. Specimens: type example, 21.6 g, NAU; main mass, GHupé.

Data from:
  MB89
  Table 7
  Line 342:
Place of purchase:Erfoud
Date:2004
Mass (g):241
Pieces:1
Class:Ure
Fayalite (mol%):9.8-19.6
Ferrosilite (mol%):16.8
Classifier:Ted Bunch, NAU
Type spec mass (g):21.6
Type spec location:NAU
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. 89, MAPS 40, A201-A263 (2005)
Find references in NASA ADS:
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Photos:
CreditPhotos
Photos from the Encyclopedia of Meteorites:
Meteorites Australia   
Pierre-Marie Pelé   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7727 approved meteorites from (Northwest Africa) (plus 1972 unapproved names)

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