header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 11 Oct 2019
Search for: Search type: Search limits: Display: Publication:
Names
Text help
Places
Classes
Years
Contains
Starts with
Exact
Sounds like
NonAntarctic
Falls  Non-NWAs
What's new
  in the last:
Limit to approved meteorite names
Search text:  
Northwest Africa 2019
Basic information Name: Northwest Africa 2019
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 2019
Observed fall: No
Year found: 2003
Country: (Northwest Africa)
Mass:help 534 g
Classification
  history:
Meteoritical Bulletin:  MB 88  (2004)  Mesosiderite
MetBase:  v. 7.1  (2006)  Mesosiderite
Recommended:  Mesosiderite    [explanation]

This is 1 of 188 approved meteorites classified as Mesosiderite.   [show all]
Search for other: Mesosiderites, Metal-rich meteorites
Writeuphelp
Writeup from MB 88:

Northwest Africa 2019

Northwest Africa

Purchased 2003

Mesosiderite

A mass of 534 g was purchased by P. Thomas in 2003. Classification and mineralogy (M. Bourot-Denise, MNHNP): the silicate portion is diogenitic, about 90% consist of large (400 µm), angular, chemically homogeneous crystals of orthopyroxene (Fs28.4); olivine is absent; augite (Fs13.4 Wo41.9) is rare; plagioclase (An89.8) is present as large patches, homogeneously distributed; silica forms a few patches and merrillite is associated with metal. Fe-Ni metal, forms large, jagged grains; it is mainly kamacite, with minor tetrataenite generally associated with schreibersite; troilite is in small grains. Paired with NWA 1827 and NWA 1879; total mass is estimated to be larger than 60 kg. Weathering grade is W1. Specimens: type specimen 31 g, MNHNP; main mass with buyer.

Data from:
  MB88
  Table 4
  Line 143:
Origin or pseudonym:Morocco
Date:2003
Mass (g):534
Pieces:1
Class:Mes
Weathering grade:W1
Ferrosilite (mol%):28.4
Classifier:M. Bourot-Denise, MNHNP. Magnetic measurements by P. Rochette, CEREGE, Marseille
Type spec mass (g):31
Type spec location:MNHN
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)
MNHNP: Museum National d'Histoire Naturelle, IMPMC-CP52, 57 rue Cuvier, 75005 Paris, France, France; Website (institutional address)
MNHN: Museum National d'Histoire Naturelle, IMPMC-CP52, 57 rue Cuvier, 75005 Paris, France, France; Website (institutional address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 88, MAPS 39, A215-A272 (2004)
Find references in NASA ADS:
Find references in Google Scholar:
Photos:
CreditPhotos
Photos from the Encyclopedia of Meteorites:
Philippe THOMAS / www.meteoritica.com   
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Woreczko Jan & Wadi   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6968 approved meteorites from (Northwest Africa) (plus 2012 unapproved names)

Direct link to this page