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Northwest Africa 13435
Basic information Name: Northwest Africa 13435
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13435
Observed fall: No
Year found: 2020
Country: (Northwest Africa)
Mass:help 277 g
Classification
  history:
Meteoritical Bulletin:  MB 109  (2021)  Diogenite
Recommended:  Diogenite    [explanation]

This is 1 of 545 approved meteorites classified as Diogenite.   [show all]
Search for other: Achondrites, Diogenites, and HED achondrites
Comments: Approved 2 Nov 2020
Writeuphelp
Writeup from MB 109:

Northwest Africa 13435 (NWA 13435)

(Northwest Africa)

Purchased: 2020 Feb

Classification: HED achondrite (Diogenite)

History: The meteorite was purchased from a local meteorite dealer in Zagora, Morocco.

Physical characteristics: Many light brownish fragments ranging from less than one gram to 115 g lacking any fusion crust.

Petrography: The meteorite is a monomict breccia predominantly composed of blocky up to 3.5 mm sized orthoproxene grains and rare more fine-grained cataclastic regions. Minor phases include plagioclase, chromite, FeS, and symplectic chromite-silica-intergrowths. No metallic iron has been found.

Geochemistry: low-Ca pyroxene: Fs27.6±0.1Wo3.2±0.4 (Fs27.2-27.8Wo2.9-4.0, n=16, FeO/MnO=25-28); calcic plagioclase: An91.8±1.6 (An88.9-93.4, n=12)

Data from:
  MB109
  Table 0
  Line 0:
Place of purchase:Zagora, Morocco
Date:P 2020 Feb
Mass (g):277.3
Pieces:many
Class:Diogenite
Shock stage:low
Weathering grade:low
Ferrosilite (mol%):27.6
Wollastonite (mol%):3.2
Classifier:A. Greshake, MNB
Type spec mass (g):21.3
Type spec location:MNB
Main mass:Kuntz
Comments:Submitted by Ansgar Greshake
Institutions
   and collections		 MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
Kuntz: Fabien Kuntz, France; Website (private address)
Catalogs:
References: Published in Gattacceca J., McCubbin F. M., Grossman J., Bouvier A., Bullock E., Chennaoui Aoudjehane H., Debaille V., D’Orazio M., Komatsu M., Miao B. and Schrader D. L. (2021) The Meteoritical Bulletin, No. 109. Meteoritics & Planetary Science 56, 1626–1630.
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9914 approved meteorites from (Northwest Africa) (plus 1841 unapproved names)

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