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Northwest Africa 10117
Basic information Name: Northwest Africa 10117
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10117
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 141 g
Classification
  history:
Meteoritical Bulletin:  MB 104  (2015)  Eucrite-br
Recommended:  Eucrite-br    [explanation]

This is 1 of 218 approved meteorites classified as Eucrite-br.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 14 May 2015
Writeuphelp
Writeup from MB 104:

Northwest Africa 10117 (NWA 10117)

(Northwest Africa)

Purchased: 2015

Classification: HED achondrite (Eucrite, brecciated)

History: Purchased by Alan Mazur from a local meteorite dealer in Morocco.

Petrography: The meteorite is a breccia consisting of up to 1 cm-sized eucritic clasts set into a matrix of abundant and recrystallized melt regions. Clasts are dominantly composed of 100-200 μm sized exsolved pyroxene and calcic plagioclase. Minor phases are chromite, troilite, and SiO2 polymorphs. Fine-grained regions between the clasts appear to be shock melted and partly recrystallized. Pairing with NWA 8036/8509 seems likely.

Geochemistry: low-Ca pyroxene: Fs61±0.5Wo2.7±0.5 (Fs59.4-61.6Wo2.1-4.5, n=18, FeO/MnO=28-33); Ca-pyroxene: Fs26.5±0.5Wo43.7±0.5 (Fs25.7-27.7Wo42.5-44.5, n=20, FeO/MnO=29-35); calcic plagioclase: An89.3±2 (An80.9-91, n=24)

Specimens: 24.2 g type specimen, MNB; main mass, Alan Mazur, Lanckorona 266, 34-143 Lanckoronan, Małopolska, Poland.

Data from:
  MB104
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2015
Mass (g):141
Pieces:1
Class:Eucrite-br
Shock stage:S5
Weathering grade:low
Ferrosilite (mol%):61; 26.5
Wollastonite (mol%):2.7; 43.7
Classifier:A. Greshake, MNB
Type spec mass (g):24.2
Type spec location:MNB
Main mass:Alan Mazur
Comments:melt breccia; 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)
Alan Mazur   
METEORITICON      
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9013 approved meteorites from (Northwest Africa) (plus 1869 unapproved names)

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