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Northwest Africa 10167
Basic information Name: Northwest Africa 10167
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10167
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 70 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 11 Jun 2015
Writeuphelp
Writeup from MB 104:

Northwest Africa 10167 (NWA 10167)

(Northwest Africa)

Purchased: 2015

Classification: Ureilite

History: Purchased by Steve Arnold in Morocco, 2015.

Physical characteristics: Single stone. Weathered exterior, saw cuts show a very dark brown interior.

Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows zoned olivine, unzoned pyroxene, fine-grained metal occupying grain boundaries, some plucking voids that were presumably occupied by graphite. Accessory phases observed are Si-bearing iron metal, chromite, Cr-bearing sulfide, and Fe-oxide.

Geochemistry: (C. Agee and N. Muttik, UNM) Olivine Fa16.1±6.1, Fe/Mn=34±14, Cr2O3=0.63±0.09 wt%, n=8; pigeonite Fs18.0±0.1Wo5.9±0.1, Fe/Mn=29±1, Cr2O3=1.05±0.02 wt%, n=8.

Classification: Ureilite

Specimens: 15.2 g including a probe mount on deposit at UNM, Steve Arnold holds the main mass.

Data from:
  MB104
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2015
Mass (g):70
Pieces:1
Class:Ureilite
Shock stage:low
Weathering grade:moderate
Fayalite (mol%):16.1±6.1
Ferrosilite (mol%):18.0±0.1
Wollastonite (mol%):5.9±0.1
Classifier:C. Agee, UNM
Type spec mass (g):15.2
Type spec location:UNM
Main mass:Steve Arnold
Comments:Fieldname SA-7; submitted by C. Agee
Institutions
   and collections
UNM: Institute of Meteoritics MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 USA, United States; Website (institutional address; updated 12 Feb 2015)
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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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7035 approved meteorites from (Northwest Africa) (plus 2000 unapproved names)

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