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Northwest Africa 6675
Basic information Name: Northwest Africa 6675
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 6675
Observed fall: No
Year found: 2010
Country: (Northwest Africa)
Mass:help 510 g
Classification
  history:
Meteoritical Bulletin:  MB 100  (2012)  Aubrite
Recommended:  Aubrite    [explanation]

This is 1 of 78 approved meteorites classified as Aubrite.   [show all]
Search for other: Achondrites, Aubrites, Enstatite achondrites, and Enstatite-rich meteorites
Comments: Approved 16 Dec 2011
Writeuphelp
Writeup from MB 100:

Northwest Africa 6675 (NWA 6675)

(Northwest Africa)

Purchased: 2010

Classification: Enstatite achondrite (Aubrite)

History: Purchased in 2010 by Giorgio Tomelleri from a Moroccan dealer in Erfoud.

Physical characteristics: A single complete stone totally weighing 510 g and displaying a dark brown exterior. Fusion crust absent.

Petrography: (V. Moggi Cecchi, G. Pratesi, S. Caporali, MSP). The thin section displays a uniform medium to coarse-grained (1 to 2 mm) inequigranular texture predominantly consisting of large enstatite and plagioclase grains embedded in a finer grained enstatite matrix. Opaque phases are mainly represented by remnant troilite, surrounded by limonite and other weathering phases.

Geochemistry: Pyroxene (En99.0Wo0.5, n=20); plagioclase (An3.2Ab91.7Or4.9, n=20).

Classification: Achondrite (aubrite). Severe weathering effects on troilite and partially for silicates.

Specimens: A total of 20 g, one polished thin section and one block are on deposit at MSP.

Data from:
  MB100
  Table 1
  Line 1471:
Place of purchase:Erfoud
Date:P 2010
Mass (g):510
Pieces:2
Class:Aubrite
Weathering grade:high
Ferrosilite (mol%):0.2 (n=20)
Wollastonite (mol%):0.4
Classifier:V. Moggi Cecchi, G. Pratesi, S. Caporali, MSP
Type spec mass (g):20
Type spec location:MSP
Main mass:Unknown
Comments:Submitted by Vanni Moggi Cecchi
Institutions
   and collections		 MSP: Museo di Scienze Planetarie, Via Galcianese 20/H, 59100 Prato, Italy, Italy; Website (institutional address; updated 22 Oct 2022)
Catalogs:
References: Published in Meteoritical Bulletin, no. 100, MAPS 49, E1-E101 (2014)
Find references in NASA ADS:
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
bphd   
Nuno Chaves   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9116 approved meteorites from (Northwest Africa) (plus 1873 unapproved names)

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