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Northwest Africa 7801
Basic information Name: Northwest Africa 7801
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7801
Observed fall: No
Year found: 2011
Country: (Northwest Africa)
Mass:help 337 g
Classification
  history:
Meteoritical Bulletin:  MB 104  (2015)  CK5
Recommended:  CK5    [explanation]

This is 1 of 162 approved meteorites classified as CK5.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (equilibrated), CK chondrites, CK chondrites (type 4-6), and CV-CK clan chondrites
Comments: Approved 14 May 2015
Writeuphelp
Writeup from MB 104:

Northwest Africa 7801 (NWA 7801)

(Northwest Africa)

Purchased: Sep 2011

Classification: Carbonaceous chondrite (CK5)

Physical characteristics: A complete, desert-varnished stone was found. The fusion crust was eroded along contraction cracks and appears leathery.

Petrography: (A.E. Rubin, UCLA) Thin section contains 2-15 μm grains of pyrrhotite and magnetite. Average groundmass grain size is approximately 50 μm, plagioclase grains average 25 μm. Chondrules lack primary glass but are readily discernible.

Geochemistry: Olivine Fa33.4±0.2 (n=14), Pyroxene Fs9.6±1.6 and Wo48.3±1.8(n=12).

Classification: (A.E. Rubin, UCLA) Olivine and pyroxene homogeneity is consistent with type 4-6, plagioclase grain size is indicative of type 5.

Data from:
  MB104
  Table 0
  Line 0:
Place of purchase:Ouarzazate
Date:P Sep 2011
Mass (g):337.16
Pieces:1
Class:CK5
Shock stage:S2
Weathering grade:W2
Classifier:A.E. Rubin and J. Utas, UCLA
Type spec mass (g):22.86
Type spec location:UCLA
Main mass:Utas
Finder:anonymous
Comments:[U3/NWAU267]; submitted by J. Utas
Institutions
   and collections
UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011)
Catalogs:
References: Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7374 approved meteorites from (Northwest Africa) (plus 1957 unapproved names)

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