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Northwest Africa 10308
Basic information Name: Northwest Africa 10308
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10308
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 29.3 g
Classification
  history:
Meteoritical Bulletin:  MB 104  (2015)  CO3
Recommended:  CO3    [explanation]

This is 1 of 653 approved meteorites (plus 2 unapproved names) classified as CO3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CM-CO clan chondrites, and CO chondrites
Comments: Approved 22 Oct 2015
Writeuphelp
Writeup from MB 104:

Northwest Africa 10308 (NWA 10308)

(Northwest Africa)

Purchased: 2015 May

Classification: Carbonaceous chondrite (CO3)

History: Purchased by Fabien Kuntz in May 2015 from a dealer in Erfoud, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Small chondrules (apparent diameter up to 0.9 mm), angular mineral fragments and small CAI are set in a red-brown matrix (~40 vol.%).

Geochemistry: Olivine (Fa0.4-52.9, Cr2O3 in ferroan examples 0.02-0.10 wt.%, N = 6), orthopyroxene (Fs0.7-8.8Wo3.3-2.2, N = 3), augite (Fs0.9Wo37.1; Fs1.4Wo49.1; N = 2).

Classification: Carbonaceous chondrite (CO3).

Specimens: 6.12 g including one polished thin section at PSF; remainder with Kuntz.

Data from:
  MB104
  Table 0
  Line 0:
Place of purchase:Erfoud
Date:P 2015 May
Mass (g):29.3
Pieces:1
Class:CO3
Shock stage:S2
Weathering grade:low
Fayalite (mol%):0.4-52.9
Ferrosilite (mol%):0.7-8.8
Wollastonite (mol%):3.3-2.2
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):6.12
Type spec location:PSF
Main mass:Kuntz
Comments:K256; submitted by A. Irving
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)
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
Kuntz: Fabien Kuntz, France; Website (private address)
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 9914 approved meteorites from (Northwest Africa) (plus 1841 unapproved names)

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