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Northwest Africa 13485
Basic information Name: Northwest Africa 13485
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13485
Observed fall: No
Year found: 2019
Country: Algeria
Mass:help 1675 g
Classification
  history:
Recommended:  Eucrite-unbr    [explanation]

This is 1 of 110 approved meteorites classified as Eucrite-unbr.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 14 Nov 2020
Writeuphelp
Writeup from MB 109:

Northwest Africa 13485 (NWA 13485)

Algeria

Find: 2019

Classification: HED achondrite (Eucrite, unbrecciated)

History: Found in Algeria close to Ouargla

Physical characteristics: Partially crusted stones (the largest one 545 g). Interior is fine-grained and gray, with visible plagioclase crystals.

Petrography: (J. Gattacecca, CEREGE) Fractured but unbrecciated igneous rock with subophitic texture. Main minerals are zoned pyroxene (with µm scale rim enriched in iron) and plagioclase.

Geochemistry: Pyroxene: low-Ca pyroxene Fs41.1±8.4Wo6.9±1.5 (n=5), Ca-pyroxene Fs47.3Wo21.2, Fs61.0Wo31.4, overall pyroxene FeO/MnO 29.9±3.0 (n=7). Plagioclase An91.0Ab8.7Or0.3 (n=2).

Classification: Achondrite (eucrite-unbr)

Specimens: Type specimen at CEREGE. Main mass with J. Bassemon.

Data from:
  MB109
  Table 0
  Line 0:
Date:2019
Mass (g):1675
Pieces:several
Class:Eucrite-unbr
Magnetic suscept.:2.72
Classifier:J. Gattacceca, CEREGE
Type spec mass (g):23
Type spec location:CEREGE
Main mass:J. Bassemon
Comments:work name CM57; 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)
Catalogs:
References: Published in Meteoritical Bulletin, no. 109, in preparation (2020)
Find references in NASA ADS:
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Geography:

Algeria
Coordinates:Unknown.

Statistics:
     This is 1 of 1153 approved meteorites from Algeria (plus 27 unapproved names) (plus 4 impact craters)

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