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Northwest Africa 5753
Basic information Name: Northwest Africa 5753
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 5753
Observed fall: No
Year found: 2008
Country: (Northwest Africa)
Mass:help 377 g
Classification
  history:
Meteoritical Bulletin:  MB 106  (2018)  Howardite
Recommended:  Howardite    [explanation]

This is 1 of 372 approved meteorites classified as Howardite.   [show all]
Search for other: Achondrites, HED achondrites, and Howardites
Comments: Approved 7 Feb 2017
Writeuphelp
Writeup from MB 106:

Northwest Africa 5753 (NWA 5753)

(Northwest Africa)

Purchased: 2008 Oct

Classification: HED achondrite (Howardite)

Petrography (K. Metzler, IfP): Fine-grained breccia, consisting of equilibrated eucrite clasts (subophitic to ophitic textures) and diogenitic pyroxene fragments (about 15 vol%), set in a fine-grained matrix of related debris. Melt rock clasts (clast-rich and clast-poor) occur and some shock veins are visible. Accessories are silica, ilmenite, chromite, iron sulfide and (mostly oxidized) metal.

Geochemistry: Mineral compositions and geochemistry: Eucrite clasts: Low-Ca pyroxene (n=20) Fs45.9±9.0Wo4.8±2.5 (Fs32-55Wo1-10). High-Ca pyroxene (n=6) Fs27.1±4.1Wo36.4±5.3 (Fs22-34Wo27-43). Diogenitic pyroxene (n=11) Fs26.5±1.4 (Fs24-28). Plagioclase (n=10) An87.8±4.4 (An80-94).

Data from:
  MB106
  Table 0
  Line 0:
Place of purchase:Munich
Date:P 2008 Oct
Mass (g):377
Pieces:1
Class:Howardite
Shock stage:moderate
Weathering grade:high
Ferrosilite (mol%):45.9; 27.1; 26.5
Wollastonite (mol%):4.8; 36.4; 3.5
Classifier:A. Bischoff, IfP
Type spec mass (g):20
Type spec location:IfP
Main mass:anonymous
Comments:Purchased from a moroccan dealer at the mineral show (Messe München) in Munich, Germany; submitted by K. Metzler (IfP)
Institutions
   and collections
IfP: Institut für Planetologie, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany (institutional address; updated 23 Jan 2012)
Catalogs:
References: Published in Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Andreas Grünemeyer   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6900 approved meteorites from (Northwest Africa) (plus 2035 unapproved names)

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