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Northwest Africa 3341
Basic information Name: Northwest Africa 3341
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 3341
Observed fall: No
Year found: 2001
Country: Morocco
Mass:help 91 g
Meteoritical Bulletin:  MB 93  (2008)  Lodranite
Recommended:  Lodranite    [explanation]

This is 1 of 91 approved meteorites classified as Lodranite.   [show all]
Search for other: Acapulcoite-lodranite family, Lodranites, and Primitive achondrites
Comments: Approved 14 Jan 2008
Revised 4 Aug 2008: final writeup
Writeup from MB 93:

Northwest Africa 3341


Find: Purchased in 2001

Achondrite (lodranite)

History: A single stone of 91 g was bought in Rissani, Morocco, in 2001.

Physical characteristics: It is oblong shaped, ~5 cm in length, and ~2 cm in diameter. The fusion crust is altered and reddish dark brown. Discrete regmaglypts are visible. One side is broken, altered, and covered with desert varnish. A few open fractures are filled with sand grains in their widest end.

Petrography: (A. Jambon, O. Boudouma, and D. Badia; UPVI). In thin section, interstitial metal patches up to a few mm are observed in addition to numerous sulfide patches with the same texture, about half as big. A network of once-molten material at grain boundaries and in the fissures is observed. Both ends of the stone are significantly altered. Aggregates of polyhedral olivine and orthopyroxene with interstitial minor phases exhibit triple junctions. Mode: olivine 41.4%, opx 32.1%, cpx 7.2%, chromite 4.4%, phosphate 3.0%, kamacite 5.2% troilite (partly oxidized) 6.1%, feldspar (mixed Na-K-Ca) 0.5%. A few internal open fractures and pores amount to less than 1%.

Mineral compositions and Geochemistry: Olivine (Fo88) zoned near the rims to (Fo76). Pyroxene (En85Fs13Wo2). Minor clinopyroxene, chromite, and Ca phosphate. Kamacite (Ni = 4 wt%) and troilite.

Classification: Achondrite (lodranite).

Type specimens: A total sample mass of 18.2 g and one polished section are on deposit at UPVI. Hmani holds the main mass (67.2 g and one end cut of 4.5 g).

Submitted by: A. Jambon, UPVI.

Data from:
  Table 2
  Line 14:
Place of purchase:Rissani, Morocco
   and collections
UPVI: Université Pierre et Marie Curie (Paris VI),Case 110, 4 Place Jussieu, 75005 Paris, France (institutional address; updated 5 Oct 2014)
Hmani: A. Hmani Moroccan Imports, 13 rue Jules Hardouin Mansart, 92600 Asnières, France (private address)
References: Published in Meteoritical Bulletin, no. 93, MAPS 43, 571-632 (2008)
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     This is 1 of 1973 approved meteorites from Morocco (plus 37 unapproved names) (plus 1 impact crater)

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