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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:
Recommended:  Diogenite    [explanation]

This is 1 of 449 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 Meteoritical Bulletin, no. 109, in preparation (2020)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7579 approved meteorites from (Northwest Africa) (plus 1969 unapproved names)

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