header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 24 Jul 2021
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 10157
Basic information Name: Northwest Africa 10157
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10157
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 57 g
Classification
  history:
Meteoritical Bulletin:  MB 104  (2015)  Eucrite
Recommended:  Eucrite    [explanation]

This is 1 of 508 approved meteorites (plus 1 unapproved name) classified as Eucrite.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 11 Jun 2015
Writeuphelp
Writeup from MB 104:

Northwest Africa 10157 (NWA 10157)

(Northwest Africa)

Purchased: 2015

Classification: HED achondrite (Eucrite)

History: Purchased by Luc Labenne in Erfoud in 2015

Physical characteristics: Brownish fragments without fusion crust. Magnetic susceptibility log χ = 4.93 ( χ in 10-9 m3/kg).

Petrography: Strongly recrystallized igneous rock with triple junctions. Typical grain size ~ 200 μm, up to mm. Main minerals: pigeonite with augite exsolution, plagioclase, chromite (euhedral, up to 50 μm), silica plymorph (to 100 μm), ilmenite, troilite. Rare metal blebs.

Geochemistry: Pyroxenes: pigeonite Fs61.2±0.3 Wo6.3±0.3 (N=3), augite Fs32.3Wo40.5 (N=1), FeO/MnO= 27.6±.1. (N=4). Plagioclase An87.3Ab12.0Or0.6 (N=2), chromite Cr#=0.84.

Classification: Eucrite (granulitic texture)

Specimens: 12 g at CEREGE, main mass with Labenne

Data from:
  MB104
  Table 0
  Line 0:
Place of purchase:Erfoud
Date:P 2015
Mass (g):57
Pieces:several
Class:Eucrite
Weathering grade:Severe
Ferrosilite (mol%):61.2±0.3 (N=3) ; 32.3 (N=1)
Wollastonite (mol%):6.3 ; 40.5
Magnetic suscept.:3.97
Classifier:J. Gattacceca, H. Pourkhorsandi, CEREGE
Type spec mass (g):12
Type spec location:CEREGE
Main mass:Luc Labenne
Finder:Luc Labenne
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)
Labenne: 23, rue de Esperance, 75013 Paris, France; Website (private address; updated 29 Aug 2012)
Catalogs:
References: Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7810 approved meteorites from (Northwest Africa) (plus 1971 unapproved names)

Direct link to this page