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Northwest Africa 11806
Basic information Name: Northwest Africa 11806
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11806
Observed fall: No
Year found: 2005
Country: (Northwest Africa)
Mass:help 12 g
Meteoritical Bulletin:  MB 107  (2018)  H3
Recommended:  H3    [explanation]

This is 1 of 670 approved meteorites (plus 2 unapproved names) classified as H3.   [show all]
Search for other: H chondrites, H chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 11 May 2018
Writeup from MB 107:

Northwest Africa 11806 (NWA 11806)

(Northwest Africa)

Purchased: 2005

Classification: Ordinary chondrite (H3)

History: Purchased by an anonymous collector from a dealer at the Munich Show in 2005, subsequently acquired by the Hollis Collection and donated to the Planetary Studies Foundation.

Petrography: (A. Irving and S. Kuehner, UWS) Closely packed chondrules (apparent diameter 350±240 µm, N = 24) are set in a sparse fine grained matrix containing altered metal.

Geochemistry: Olivine (Fa0.8-23.1, Cr2O3 in ferroan examples 0.02-0.28 wt.%, mean 0.07±0.10 wt.%, N = 7), orthopyroxene (Fs1.4-28.6Wo0.7-1.8, N = 3), subcalcic augite (Fs9.2-30.1Wo30.9-32.7, N = 2), diopside (Fs1.1Wo41.7). Magnetic susceptibility log χ (× 10-9 m3/kg) = 4.86.

Classification: Ordinary chondrite (H3).

Specimens: The entire specimen including a polished endcut is at PSF.

Data from:
  Table 0
  Line 0:
Place of purchase:Munich
Date:P 2005
Mass (g):12
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):0.8-23.1
Ferrosilite (mol%):1.4-28.6
Wollastonite (mol%):0.7-1.8
Magnetic suscept.:4.86
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):12
Type spec location:PSF
Main mass:PSF
Comments:CHC18019; submitted by A. Irving
   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)
References: Published in Meteoritical Bulletin, no. 107, MAPS 55, 460-462
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     This is 1 of 8745 approved meteorites from (Northwest Africa) (plus 1880 unapproved names)

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