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Northwest Africa 13064
Basic information Name: Northwest Africa 13064
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13064
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass:help 6.3 kg
Classification
  history:
Recommended:  Eucrite    [explanation]

This is 1 of 472 approved meteorites (plus 1 unapproved name) classified as Eucrite.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 31 Jan 2020
Writeuphelp
Writeup from MB 109:

Northwest Africa 13064 (NWA 13064)

(Northwest Africa)

Purchased: 2019

Classification: HED achondrite (Eucrite)

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

Physical characteristics: Many greyish fragments without fusion crust.

Petrography: The meteorite is a fragmental breccia composed of larger exsolved pyroxene (up to 400 µm) and calcic plagioclase (up to 500 µm) grains set into a more fine-grained clastic matrix. Minor phases include silica, chromite, FeS, and ilmenite. No metallic iron has been detected. The meteorite contains shock melt veins.

Geochemistry: low-Ca pyroxene: Fs57.4±0.5Wo2.7±0.2 (Fs57.0-58.8Wo2.2-3.1, FeO/MnO=26-28, n=12); Ca-pyroxene: Fs25.2±0.7Wo43.3±0.7 (Fs24.4-27.3Wo41.1-44.0, FeO/MnO=24-28, n=15); calcic plagioclase: An90.9±0.4 (An90.2-91.6, n=14)

Data from:
  MB109
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2019
Mass (g):6300
Pieces:many
Class:Eucrite
Shock stage:low
Weathering grade:moderate
Ferrosilite (mol%):57.4; 25.2
Wollastonite (mol%):2.7; 43.3
Classifier:A. Greshake, MNB
Type spec mass (g):26.9
Type spec location:MNB
Main mass:Mohamed Lamine
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 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 7385 approved meteorites from (Northwest Africa) (plus 1955 unapproved names)

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