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Northwest Africa 10033
Basic information Name: Northwest Africa 10033
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10033
Observed fall: No
Year found: 2014
Country: Morocco
Mass:help 123 g
Meteoritical Bulletin:  MB 104  (2015)  EL6
Recommended:  EL6    [explanation]

This is 1 of 133 approved meteorites classified as EL6.   [show all]
Search for other: EL chondrites, Enstatite chondrites, Enstatite chondrites (type 4-7), and Enstatite-rich meteorites
Comments: Approved 3 Apr 2015
Writeup from MB 104:

Northwest Africa 10033 (NWA 10033)


Purchased: 2014

Classification: Enstatite chondrite (EL6)

History: Purchased by Nicola Castellano at the Genova Mineral Fair in May 2014 from a Moroccan dealer.

Physical characteristics: A single piece weighing 123 g without fusion crust.

Petrography: (V. Moggi Cecchi, G. Pratesi, S. Caporali, UniFi); The thin section displays an equilibrated texture, with a matrix consisting of pyroxene and minor plagioclase and rare relic chondrules. Iron oxides/hydroxides veinlets can be observed, ranging in width from 150 to 200 μm. Relic chondrules are mainly RP type, with minor GP and range from 0.2 to 0.8 mm in diameter. Opaque phases are mainly kamacite and troilite, partially weathered to iron oxides. Alabandite and daubreelite as blades in troilite are accessory phases. The presence of alabandite, An content of plagioclase and Si content of kamacite point to a classification as EL chondrite.

Geochemistry: Orthopyroxene (Fs0.5En98.1Wo1.4), plagioclase (An15.8Or4.4); Si in kamacite = 0.7 wt.%, Ti in troilite = 5.8 wt.%

Classification: Enstatite chondrite (EL6). Probably paired with NWA 10034 and NWA 10035.

Specimens: A total of 22.4 g specimen and one thin section is on deposit at MSN-FI. Castellano holds the main mass.

Data from:
  Table 0
  Line 0:
Origin or pseudonym:Laayoun
Place of purchase:Genova
Date:P 2014
Mass (g):123
Shock stage:low
Weathering grade:low
Ferrosilite (mol%):0.5
Wollastonite (mol%):1.4
Classifier:V. Moggi Cecchi, S. Caporali, G. Pratesi, MSN-FI
Type spec mass (g):22.4
Type spec location:MSN-FI
Main mass:Castellano
Comments:Submitted by Vanni Moggi Cecchi
   and collections
MSN-FI: Museo di Storia Naturale “La Specola”, Sez. Mineralogia – Sistema Museale dell'Università degli Studi di Firenze Via Giorgio La Pira, 4 – 50121 Firenze, Italy; Website (institutional address; updated 24 Oct 2022)
UniFi: Università degli Studi di Firenze, P.zza S. Marco, 4 - 50121 Firenze, Italy (institutional address; updated 14 Sep 2013)
References: Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
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     This is 1 of 2012 approved meteorites from Morocco (plus 35 unapproved names) (plus 1 impact crater)

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