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Northwest Africa 12625
Basic information Name: Northwest Africa 12625
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12625
Observed fall: No
Year found: 2018
Country: (Northwest Africa)
Mass:help 6.52 kg
Meteoritical Bulletin:  MB 108  (2020)  L3
Recommended:  L3    [explanation]

This is 1 of 798 approved meteorites (plus 1 unapproved name) classified as L3.   [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 11 May 2019
Writeup from MB 108:

Northwest Africa 12625 (NWA 12625)

(Northwest Africa)

Purchased: 2018 Sep

Classification: Ordinary chondrite (L3)

History: Purchased by Bob Falls in September 2018 from a Moroccan dealer at the Denver Show.

Petrography: (A. Irving and S. Kuehner, UWS) Very closely packed, well-formed chondrules (apparent diameter 730±260 µm, N = 22) are set in a sparse matrix containing minor stained metal.

Geochemistry: Olivine, Fa27.0±11.5 (Fa1.3-33.4), Cr2O3 in ferroan examples 0.04-0.08 wt.%, mean 0.06±0.1 wt.%, N = 7; orthopyroxene, Fs5.6±6.4Wo0.7±0.3 (Fs1.7-13.0Wo1.0-0.4), N = 3; subcalcic augite, Fs20.2±3.5Wo28.8±2.5 (Fs17.7-22.6Wo30.5-27.0), N = 2. Magnetic susceptibility log χ (× 10-9 m3/kg) = 4.65.

Classification: Ordinary chondrite (L3).

Specimens: 43.5 g including one polished thin section at UWB; remainder with Mr. R. Falls.

Data from:
  Table 0
  Line 0:
Place of purchase:Denver
Date:P 2018 Sep
Mass (g):6516
Shock stage:S2
Weathering grade:W1
Fayalite (mol%):1.3-33.4
Ferrosilite (mol%):1.7-13.0
Wollastonite (mol%):1.0-0.4
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):43.5
Type spec location:UWB
Main mass:R. Falls
Comments:Work name BF18-25; submitted by A. Irving
   and collections
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
References: Published in Meteoritical Bulletin, no. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150
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     This is 1 of 8904 approved meteorites from (Northwest Africa) (plus 1871 unapproved names)

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