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Northwest Africa 14133
Basic information Name: Northwest Africa 14133
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14133
Observed fall: No
Year found: 2020
Country: Morocco
Mass:help 2.06 kg
Recommended:  H5    [explanation]

This is 1 of 10910 approved meteorites (plus 20 unapproved names) classified as H5.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 24 Jul 2021
Writeup from MB 110:

Northwest Africa 14133 (NWA 14133)


Find: 2020 Mar

Classification: Ordinary chondrite (H5)

History: (J. Higgins) Mohamed Iken found a single 2057 g stone in March of 2020 in an area between Tagounite and Zagora, Morocco. Mohamed Elguirah purchased the sample and sent to John Higgins for classification.

Physical characteristics: Sample has a dark-brown exterior with visible chondrules on the surface. The cut face shows the interior has a chondritic texture with abundant chondrules separated by oxidized veinlets.

Petrography: Description and classification (A. Love, App) Sample shows a chondritic texture composed of well-defined chondrules and fragments set within a recrystallized matrix crosscut by FeOH minerals. Chondrules have an average apparent diameter of 557 µm (n=119). Chondrules shows recrystallized mesostasis. Most low-Ca pyroxene is orthoenstatite. Secondary plagioclase has an average grainsize of 45µm (n=26). Additional minerals: chromite, secondary calcite, apatite and troilite.

Geochemistry: (A. Love, App) Olivine (Fa17.7±0.2, Fe/Mn=34.5±0.9, n=16); low-Ca pyroxene (Fs15.5±0.2Wo1.3±0.1, Fe/Mn=21.6±0.6, n=14).

Classification: Ordinary chondrite (H5, C-S3, W3). Based on textures, size of secondary plagioclase and mineral compositions, sample is a H5.

Specimens: John Higgins holds the main mass. A polished thin section and a 23.48g sliced individuals are on deposit at App.

Data from:
  Table 0
  Line 0:
Place of purchase:Morocco
Date:2020 Mar
Mass (g):2057
Shock stage:C-S3
Weathering grade:W3
Fayalite (mol%):17.7±0.2
Ferrosilite (mol%):15.5±0.2
Wollastonite (mol%):1.3±0.1
Magnetic suscept.:4.67
Classifier:A. Love, App
Type spec mass (g):23.48
Type spec location:App
Main mass:John Higgins
Finder:Mohamed Iken
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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