Meteoritical Bulletin: Entry for Northwest Africa 13155

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Northwest Africa 13155

Basic information

Name: Northwest Africa 13155
This is an OFFICIAL meteorite name.
Abbreviation: NWA 13155
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass: 472 g

Classification
history:

Recommended:

Ureilite [explanation]

This is 1 of 605 approved meteorites classified as Ureilite. [show all]
Search for other: Achondrites, Ureilites

Comments:

Approved 17 Feb 2020

Writeup

Writeup from MB 109:

Northwest Africa 13155 (NWA 13155)

(Northwest Africa)

Purchased: 2019 Sept

Classification: Ureilite

Petrography: (J. Gattacceca, CEREGE) Blocky aggregate of mm-sized olivine grains. Fe,Ni metal present at grain junctions, and as trails of μm-sized blebs in silicates. Abundant carbon material at grain junction as pockets up to 500 μm × 100 μm.

Geochemistry: Olivine Fa_21.5±0.1, CaO=0.40 wt%; Cr₂O₃=0.70 wt% (n=3). Olivine rims Fa_13.3-16.4.

Classification: Ureilite

Specimens: Type specimen at CEREGE, main mass with Labenne

Data from:
  MB109
  Table 0
  Line 0:

Place of purchase:	Morocco
Date:	P 2019 Sept
Mass (g):	472
Pieces:	1
Class:	Ureilite
Weathering grade:	moderate
Fayalite (mol%):	21.5±0.1 (n=3)
Magnetic suscept.:	4.64
Classifier:	J. Gattacceca, CEREGE
Type spec mass (g):	27
Type spec location:	CEREGE
Main mass:	Labenne
Comments:	work name LL87/LAB031219a; 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)
Labenne: 23, rue de Esperance, 75013 Paris, France; Website (private address; updated 29 Aug 2012)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 109, in preparation (2020)

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Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 8509 approved meteorites from (Northwest Africa) (plus 1899 unapproved names)

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