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Northwest Africa 13652
Basic information Name: Northwest Africa 13652
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13652
Observed fall: No
Year found: 2020
Country: (Northwest Africa)
Mass:help 390 g
Classification
  history:
Meteoritical Bulletin:  MB 110  (2022)  Winonaite
Recommended:  Winonaite    [explanation]

This is 1 of 85 approved meteorites (plus 1 unapproved name) classified as Winonaite.   [show all]
Search for other: Primitive achondrites, Winonaites
Comments: Approved 16 Jan 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 13652 (NWA 13652)

(Northwest Africa)

Purchased: 2020 Oct

Classification: Primitive achondrite (Winonaite)

History: The meteorite was purchased from a dealer in Tindouf, Algeria.

Physical characteristics: Dark brownish rock without fusion crust.

Petrography: The meteorite exhibts a recrystallized texture with abundant 120 degree triple junctions present at mineral grain boundaries. Predominant mineral phases are equigranular, 100 to 300 µm sized Mg-rich olivine, low-Ca pyroxene, augite, and sodic feldspar grains. Opaque phases are kamacite, taenite, and troilite which ocurr finely dispersed in the section studied. No relict chondrules were observed.

Geochemistry: olivine: Fa3.2±0.1 (Fa3.1-3.3 FeO/MnO=12±1, n=12); low-Ca pyroxene: Fs4.1±0.1Wo1.9±0.1 (Fs4.0-4.3Wo1.8-2.1, FeO/MnO=11±1, n=13); Ca-pyroxene: Fs1.4±0.1Wo45.8±1.3 (Fs1.2-1.7Wo44.6-48.1, FeO/MnO=9±2, n=12); feldspar: An22.0±0.4Ab75.7±0.4Or2.3±0.2, n=11

Classification: Winonaite; likely paired with NWA 13624

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Tindouf, Algeria
Date:P 2020 Oct
Mass (g):390
Pieces:6
Class:Winonaite
Shock stage:S1
Weathering grade:low
Fayalite (mol%):3.2
Ferrosilite (mol%):4.1; 1.4
Wollastonite (mol%):1.9; 45.8
Classifier:A. Greshake, MNB
Type spec mass (g):48
Type spec location:MNB
Main mass:Salamu Hamad
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 Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9589 approved meteorites from (Northwest Africa) (plus 1869 unapproved names)
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Revision
  history:
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