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Northwest Africa 13065
Basic information Name: Northwest Africa 13065
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13065
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass:help 13 g
Classification
  history:
Recommended:  Eucrite    [explanation]

This is 1 of 513 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 13065 (NWA 13065)

(Northwest Africa)

Purchased: 2019

Classification: HED achondrite (Eucrite)

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

Physical characteristics: Small brownish rock without fusion crust.

Petrography: The meteorite is an unbrecciated fine-grained basalt predominantly composed of exsolved pyroxene and often laths-shaped calcic plagioclase with average grain sizes of about 300 μm. Pyroxene appears brownish in plane polarized light. Minor phases include silica, chromite, troilite, zircon, and metallic iron.

Geochemistry: low-Ca pyroxene: Fs57.7±0.7Wo2.7±0.7 (Fs56.5-58.7Wo1.8-4.5, FeO/MnO=31-34, n=11); Ca-pyroxene: Fs25.6±0.8Wo43.0±0.7 (Fs24.6-26.9Wo41.9-43.9, FeO/MnO=28-34, n=12); calcic plagioclase: An85.7±0.8 (An84.7-87.8, n=11)

Data from:
  MB109
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2019
Mass (g):13
Pieces:1
Class:Eucrite
Shock stage:moderate
Weathering grade:moderate
Ferrosilite (mol%):57.7; 25.6
Wollastonite (mol%):2.7; 43.0
Classifier:A. Greshake, MNB
Type spec mass (g):2.7
Type spec location:MNB
Main mass:Philippe Schmitt-Kopplin
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 7885 approved meteorites from (Northwest Africa) (plus 1958 unapproved names)

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