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Northwest Africa 10100
Basic information Name: Northwest Africa 10100
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10100
Observed fall: No
Year found: 2013
Country: (Northwest Africa)
Mass:help 1000 g
Classification
  history:
Meteoritical Bulletin:  MB 104  (2015)  CO3
Recommended:  CO3    [explanation]

This is 1 of 566 approved meteorites (plus 1 unapproved name) classified as CO3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CM-CO clan chondrites, and CO chondrites
Comments: Approved 14 May 2015
Writeuphelp
Writeup from MB 104:

Northwest Africa 10100 (NWA 10100)

(Northwest Africa)

Purchased: 2013 July 10

Classification: Carbonaceous chondrite (CO3)

Petrography: (A.E. Rubin, UCLA) Matrix abundance is ~45%, average chondrule diameter is ~200 μm. Most chondrules are type I porphyritic, consistent with a carbonaceous chondrite. Some small amoeboid olivine inclusions are present (~300 μm in diameter). Heterogeneity of olivine and abundant polysynthetically twinned low-Ca pyroxene are indicative of an unequilibrated chondrite. Chondrules are sharply defined.

Geochemistry: Mineral compositions and geochemistry: (A.E. Rubin, UCLA) Cr2O3 of ferroan olivine: 0.08±0.07 (n=11).

Data from:
  MB104
  Table 0
  Line 0:
Place of purchase:Zouirate
Date:P 2013 July 10
Mass (g):1000
Pieces:2
Class:CO3
Shock stage:low
Weathering grade:medium
Fayalite (mol%):28.1±13.2 (4.8-37.9, n=13)
Ferrosilite (mol%):4.2±0.9 (n=5)
Wollastonite (mol%):2.2±1.9 (n=5)
Classifier:A.E. Rubin and J. Utas, UCLA
Type spec mass (g):20
Type spec location:UCLA
Main mass:Tomasz Jakubowski
Finder:anonymous
Comments:[Aid2]; 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:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7579 approved meteorites from (Northwest Africa) (plus 1969 unapproved names)

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