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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
Classification
  history:
Meteoritical Bulletin:  MB 110  (2022)  H6
Recommended:  H6    [explanation]

This is 1 of 6825 approved meteorites (plus 6 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
Writeuphelp
Writeup from MB 110:

Northwest Africa 14109 (NWA 14109)

Morocco

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:
  MB110
  Table 0
  Line 0:
Place of purchase:Erfoud
Date:P 2017
Mass (g):7600
Pieces:1
Class:H6
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
Institutions
   and collections		 App: Department of Geology, 572 Rivers St., Appalachian State University, Boone, NC 28608, United States (institutional address; updated 7 Mar 2013)
Catalogs:
References: Published in Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4
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Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 2082 approved meteorites from Morocco (plus 31 unapproved names) (plus 1 impact crater)
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Revision
  history:
  This lists important revisions made to data for this record.

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