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Northwest Africa 10970
Basic information Name: Northwest Africa 10970
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10970
Observed fall: No
Year found: 2005
Country: (Northwest Africa)
Mass:help 8.64 kg
Meteoritical Bulletin:  MB 106  (2018)  H3/4
Recommended:  H3/4    [explanation]

This is 1 of 36 approved meteorites classified as H3/4.   [show all]
Search for other: H chondrites, H chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 3 Mar 2017
Writeup from MB 106:

Northwest Africa 10970 (NWA 10970)

(Northwest Africa)

Purchased: 2005

Classification: Ordinary chondrite (H3/4)

History: Purchased by an anonymous collector from a dealer at the Munich Show in 2005 and subsequently acquired by the Hollis Collection.

Petrography: (A. Irving and S. Kuehner, UWS) Unequilibrated with highly magnesian cores in olivine and orthopyroxene. Well-formed, relatively small chondrules (apparent diameter 300±200 μm) are set in a recrystallized matrix containing abundant stained metal.

Geochemistry: Olivine (predominantly Fa16.5-17.1, magnesian core Fa1.2, Cr2O3 <0.04 wt.%, N = 7), orthopyroxene (Fs4.2-42.2Wo0.3-2.6, N = 3), clinopyroxene (Fs1.1-1.2Wo39.4-44.3, N = 2). Magnetic susceptibility log χ (× 10-9 m3/kg) = 4.98.

Classification: Ordinary chondrite (H3/4).

Specimens: 36 g including one polished thin section at PSF; remainder in the Hollis Collection.

Data from:
  Table 0
  Line 0:
Place of purchase:Munich
Date:P 2005
Mass (g):8637
Shock stage:S2
Weathering grade:W1
Fayalite (mol%):1.2-17.1
Ferrosilite (mol%):4.2-42.2
Wollastonite (mol%):0.3-2.6
Magnetic suscept.:4.98
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):36
Type spec location:PSF
Main mass:Hollis Collection
Comments:CHC16016; 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 Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.
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     This is 1 of 8495 approved meteorites from (Northwest Africa) (plus 1899 unapproved names)

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