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Northwest Africa 8446
Basic information Name: Northwest Africa 8446
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 8446
Observed fall: No
Year found: 2014
Country: (Northwest Africa)
Mass:help 10 g
Classification
  history:
Meteoritical Bulletin:  MB 103  (2014)  Diogenite
Recommended:  Diogenite    [explanation]

This is 1 of 436 approved meteorites classified as Diogenite.   [show all]
Search for other: Achondrites, Diogenites, and HED achondrites
Comments: Approved 23 Jun 2014
Writeuphelp
Writeup from MB 103:

Northwest Africa 8446 (NWA 8446)

(Northwest Africa)

Purchased: 2014

Classification: HED achondrite (Diogenite)

History: Purchased in Morocco in 2014

Physical characteristics: Crusted stones. Cut surface reveals gray interior

Petrography: Coarse-grained crystalline rock. Main mineral is orthopyroxene with typical grain size 750 μm. Plagioclase with grain size 100 μm. Chromite, metal (grain size 70 μm), silica and metal weathering products are present. No olivine was observed

Geochemistry: OPX Fs25.8±0.1 (n=3), FeO/MnO=29.9. Plagioclase An88.3Ab11.5Or0.2. Magnetic susceptibility log χ = 3.67 (χ in 10-9 m3/kg) indicates an unusually high metal content for a diogenite (like in Garland)

Classification: Achondrite (diogenite, metal rich)

Specimens: 2 g and a polished section in CEREGE. Main mass with Pierre-Marie Pelé.

Data from:
  MB103
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2014
Mass (g):9.95
Pieces:4
Class:Diogenite
Ferrosilite (mol%):25.8±0.1 (N=3)
Wollastonite (mol%):3.0±0.26
Magnetic suscept.:3.67
Classifier:C. Cournède and J. Gattacceca, CEREGE
Type spec mass (g):2
Type spec location:CEREGE
Main mass:Pierre-Marie Pelé
Comments:Submitted by J. Gattacceca
Institutions
   and collections
CEREGE: CEREGE BP 80 Avenue Philibert, Technopole de l'Arbois 13545 Aix-en-Provence Cedex 4 France, France (institutional address; updated 29 Oct 2018)
Catalogs:
References: Published in Meteoritical Bulletin, no. 103, MAPS 52, 1014, May 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12888/full
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Denis gourgues   
Woreczko Jan & Wadi   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7187 approved meteorites from (Northwest Africa) (plus 2002 unapproved names)

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