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Northwest Africa 7029
Basic information Name: Northwest Africa 7029
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7029
Observed fall: No
Year found: 2009
Country: Morocco
Mass:help 206 g
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  LL3.10
Recommended:  LL3.10    [explanation]

This is 1 of 6 approved meteorites classified as LL3.10.   [show all]
Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 16 Dec 2013
Writeuphelp
Writeup from MB 102:

Northwest Africa 7029 (NWA 7029)

Morocco

Purchased: 2009

Classification: Ordinary chondrite (LL3.10)

History: Purchased by Blaine Reed in Denver, 2009.

Physical characteristics: Single stone, weathered exterior, saw cut surface reveals numerous densely packed chondrules (200-4000 μm) set in a dark brown matrix.

Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows numerous porphyritic chondrules with igneous zoned olivines and pyroxenes, also BO and cryptocrystalline chondrules, opaque matrix present. Troilite, kamacite, taenite, Cl-rich apatite.

Geochemistry: (C. Agee and N. Muttik, UNM) Olivine range Fa1.0-34.0; mean values for ferroan olivine Fa17.5±9.8, Fe/Mn=45±22, Cr2O3=0.24±0.19, n=26; low-Ca pyroxene Fs13.4±11.2Wo2.1±3.4, Fe/Mn=19±9, n=19, high-Ca pyroxene Fs4.3Wo33.0, n=1.

Classification: Ordinary chondrite (LL3.10), type 3.10 based on mean value and sigma of Cr2O3 in ferroan olivine after the method of Grossman and Brearley (2005).

Specimens: 20.6 g including a probe mount on deposit at UNM, 22.6 g at PSFReed holds the main mass.

Bibliography:
  • Grossman J.N. and Brearley A.J. (2005) The onset of metamorphism in ordinary and carbonaceous chondrites. Meteorit. Planet. Sci. 40, 87-122. (link)
Data from:
  MB102
  Table 0
  Line 0:
Place of purchase:Denver
Date:P 2009
Mass (g):205.6
Pieces:1
Class:LL3.10
Fayalite (mol%):17.5±9.8
Ferrosilite (mol%):13.4±11.2
Wollastonite (mol%):2.1±3.4
Classifier:C. Agee, UNM
Type spec mass (g):20.6 ; 22.6
Type spec location:UNM ; PSF
Main mass:Blaine Reed
Comments:Submitted by C. Agee
Institutions
   and collections
PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011)
UNM: Institute of Meteoritics MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 USA, United States; Website (institutional address; updated 12 Feb 2015)
Reed: Blaine Reed, P.O. Box 1141, Delta, CO 81416, United States; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
Find references in NASA ADS:
Find references in Google Scholar:
Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1390 approved meteorites from Morocco (plus 16 unapproved names) (plus 1 impact crater)

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