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Wad al Fayda 001
Basic information Name: Wad al Fayda 001
     This is an OFFICIAL meteorite name.
Abbreviation: WaF 001
Observed fall: No
Year found: 2020
Country: Western Sahara
Mass:help 1463 g
Classification
  history:
Recommended:  CR2    [explanation]

This is 1 of 176 approved meteorites classified as CR2.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), and CR chondrites
Comments: Approved 8 Apr 2021
Writeuphelp
Writeup from MB 110:

Wad al Fayda 001 (WaF 001)        24°41.635’N , 12°58.270’W

Rio de Oro, Western Sahara

Find: 2018

Classification: Carbonaceous chondrite (CR2)

History: Two samples that fit together were found by Lahsen Oussalah in the region between Guelta Zemour and Oum Dreyga (~72 km NE), Western Sahara, in 2018. Jean Redelsperger purchase the samples from Mohamed El Guirah in Zagora in 2020. A third sample weighing 507 g was purchased subsequent to this reporting.

Physical characteristics: Samples are dark-brown in color, irregularly shaped, and have a wind-blown exterior. Some chondrules are visible on the surface. The cut face shows abundant metal decorated chondrules in a brown, fine-grained matrix.

Petrography: Classification and description (A. Love, App) Sample shows chondritic texture composed of abundant metal-decorated chondrules with igneous rims showing average apparent diameter of 571 µm (n=156) and rare CAIs and AOAs set within a hydrated matrix with abundant framboidal magnetite. Type I chondrules are dominant. Additional minerals are: troilite, rare Ca-armalcolite, trace chromite and phosphates.

Geochemistry: (A. Love, App) Olivine (type I: Fa2.3±1.3, Cr2O3=0.5±0.2, Fe/Mn=38.3±50.0, n=20, type II: Fa19.2±10.5, Fe/Mn=60.0±27.6, n=7), low Ca pyroxene (Fs6.8±8.0Wo1.1±0.9, Fe/Mn=22.4±13.4, n=21). Matrix with low analytical totals (81.0±5.2 Wt%, n=14).

Classification: Carbonaceous chondrite (CR2). Based on presence of metal decorated chondrules, hydrated matrix with abundant framboidal magnetite and rare CAIs, this sample is a CR2.

Specimens: Jean Redelsperger holds the main masses. Two fragments weighing 21.12 g and polished mount are on deposit at App.

Data from:
  MB110
  Table 0
  Line 0:
State/Prov/County:Rio de Oro
Place of purchase:Zagora
Date:2018
Latitude:24°41.635'N 
Longitude:12°58.270'W
Mass (g):1463
Pieces:3
Class:CR2
Shock stage:low
Weathering grade:low
Fayalite (mol%):6.7±9.1
Ferrosilite (mol%):6.8±8.0
Wollastonite (mol%):1.1±0.9
Magnetic suscept.:4.75
Classifier:A. Love, App
Type spec mass (g):21.12
Type spec location:App
Main mass:Jean Redelsperger
Finder:Lachen Oussalah
Comments:Submitted by Anthony Love
Institutions
   and collections
App: Department of Geology, 572 Rivers St., Appalachian State University, Boone, NC 28608, United States (institutional address; updated 7 Mar 2013)
Catalogs:
References: Published in Meteoritical Bulletin, no. 110, in preparation (2021)
Find references in NASA ADS:
Find references in Google Scholar:
Photos:
CreditPhotos
Public domain photographs:
Anthony Love   
Geography:

Western Sahara
Coordinates:
     Recommended::   (24° 41' 38"N, 12° 58' 16"W)

Statistics:
     This is 1 of 40 approved meteorites from Rio de Oro, Western Sahara
     This is 1 of 239 approved meteorites from Western Sahara (plus 19 unapproved names)
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