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Northwest Africa 13835
Basic information Name: Northwest Africa 13835
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13835
Observed fall: No
Year found: 2020
Country: (Northwest Africa)
Mass:help 106.2 g
Classification
  history:
Recommended:  Eucrite-unbr    [explanation]

This is 1 of 123 approved meteorites classified as Eucrite-unbr.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 20 Mar 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 13835 (NWA 13835)

(Northwest Africa)

Purchased: August 2020

Classification: HED achondrite (Eucrite, unbrecciated)

Petrography: (J. Gattacceca, CEREGE) Unbrecciated igneous rock with poikilitic texture (lobate plagioclase grains enclosed in pyroxene). Grain size 400 µm. Pyroxenes are exsolved at µm scale. Opaque minerals are rare troilite and metal.

Geochemistry: Low-Ca pyroxene Fs48.4±1.4Wo3.3±2.0, FeO/MnO = 31,7±1.7 (n=5). Ca-pyroxene exsolutions Fs22.3Wo41.4, FeO/MnO = 28.9 (n=2). Plagioclase An91.7±0.4Ab8.0±0.5Or0.3±0.1 (n=5).

Classification: Achondrite (eucrite, unbrecciated)

Specimens: Type specimen at CEREGE. Main mass with Kuntz.

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Zagora, Morocco
Date:P August 2020
Mass (g):106.2
Pieces:1
Class:Eucrite-unbr
Fayalite (mol%):48.4±1.4 (n=5)
Ferrosilite (mol%):3.3±2.0
Magnetic suscept.:2.52
Classifier:J. Gattacceca, CEREGE
Type spec mass (g):20.01
Type spec location:CEREGE
Main mass:Kuntz
Finder:anonymous
Comments:work name K505; submitted by Jérôme Gattacceca
Institutions
   and collections
CEREGE: CEREGE BP 80 Avenue Philibert, Technopole de l'Arbois 13545 Aix-en-Provence Cedex 4 France, France (institutional address; updated 29 Oct 2018)
Kuntz: Fabien Kuntz, France; Website (private address)
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 8745 approved meteorites from (Northwest Africa) (plus 1880 unapproved names)

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