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Northwest Africa 10139
Basic information Name: Northwest Africa 10139
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10139
Observed fall: No
Year found: 2014
Country: (Northwest Africa)
Mass:help 80 g
Classification
  history:
Meteoritical Bulletin:  MB 104  (2015)  Ureilite
Recommended:  Ureilite    [explanation]

This is 1 of 516 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Comments: Approved 23 May 2015
Writeuphelp
Writeup from MB 104:

Northwest Africa 10139 (NWA 10139)

(Northwest Africa)

Purchased: 2014 Mar 15

Classification: Ureilite

History: Purchased by Jan Woreczko from a local meteorite dealer in Erfoud, Morocco.

Petrography: The meteorite shows a cumulate texture of blocky, up to 3 mm sized Cr-rich olivine, augite and rare poikilitically enclosed orthopyroxene crystals. It contains flaky graphite; olivine displays characteristic reduced rims.

Geochemistry: Reduced rims in olivine: Fa3.7-6.9; Cr2O3 in olivine: ~0.5 wt%

Data from:
  MB104
  Table 0
  Line 0:
Place of purchase:Erfoud, Morocco
Date:P 2014 Mar 15
Mass (g):80
Pieces:4
Class:Ureilite
Shock stage:low
Weathering grade:low
Fayalite (mol%):11.1±0.3 (n=16)
Ferrosilite (mol%):9.9±0.1 (n=16); 6±0.1 (n=16)
Wollastonite (mol%):4.9±0.1 (n=16); 37.6±0.1 (n=16)
Classifier:A. Greshake, MNB
Type spec mass (g):18.8
Type spec location:MNB
Main mass:Jan Woreczko; Woreczko & Wadi Meteorites Collection, Warsaw, Poland, website: www.woreczko.pl
Comments:Submitted by Ansgar Greshake
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
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:
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Photos:
CreditPhotos
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 7048 approved meteorites from (Northwest Africa) (plus 1998 unapproved names)

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