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Northwest Africa 14109
Basic information Name: Northwest Africa 14109
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14109
Observed fall: No
Year found: 2017
Country: Morocco
Mass:help 7.6 kg
Recommended:  H6    [explanation]

This is 1 of 6416 approved meteorites (plus 5 unapproved names) classified as H6.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 17 Jul 2021
Writeup from MB 110:

Northwest Africa 14109 (NWA 14109)


Purchased: 2017

Classification: Ordinary chondrite (H6)

History: Thierry Simard purchased the 7600 g piece from a meteorite prospector in Erfoud, Morocco, in 2017.

Physical characteristics: The samples are irregularly shaped, lack fusion crust and have a yellowish-brown exterior. The type specimen has a yellowish-orange interior that is brecciated and friable. The cut face shows angular-sub-rounded clasts up to 1.5 cm in long dimension.

Petrography: Description and classification (A. Love, App): Sample is an aggregate of fractured, 250-1024µm orthopyroxene grains which share 120º grain boundaries. Sparse areas with fine-grained brecciated texture were observed. Orthopyroxenes contain exsolved Cpx inclusions. Additional minerals are: chromite, Si polymorphs, FeS and rare Ni-free iron metal.

Geochemistry: (A. Love, App) Olivine (Fa18.4±0.2, Fe/Mn=35.0±0.9, n=8); low-Ca pyroxene (Fs16.6±0.2Wo1.3±0.1, n=8).

Classification: Ordinary chondrite (H6, C-S3, W3). Chondrule size and magnetic susceptibility fall outside of the observed range for H chondrites however textures, equilibrated mineral compositions, suggest sample is an H6.

Specimens: Thierry Simard holds the main mass. A polished thin section and a 25.64 g endcut are on deposit at App.

Data from:
  Table 0
  Line 0:
Place of purchase:Erfoud
Date:P 2017
Mass (g):7600
Shock stage:C-S3
Weathering grade:W3
Fayalite (mol%):18.4±0.2
Ferrosilite (mol%):16.6±0.2
Wollastonite (mol%):1.3±0.1
Magnetic suscept.:4.46
Classifier:A. Love, App
Type spec mass (g):25.64
Type spec location:App
Main mass:Thierry Simard
Comments:Submitted by Anthony Love
   and collections
App: Department of Geology, 572 Rivers St., Appalachian State University, Boone, NC 28608, United States (institutional address; updated 7 Mar 2013)
References: Published in Meteoritical Bulletin, no. 110, in preparation (2021)
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     This is 1 of 1894 approved meteorites from Morocco (plus 27 unapproved names) (plus 1 impact crater)

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