Meteoritical Bulletin: Entry for Northwest Africa 13706

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Northwest Africa 13706

Basic information

Name: Northwest Africa 13706
This is an OFFICIAL meteorite name.
Abbreviation: NWA 13706
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass: 155 g

Classification
history:

Recommended:

CVred3 [explanation]

This is 1 of 6 approved meteorites classified as CVred3. [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites

Comments:

Approved 20 Mar 2021

Writeup

Writeup from MB 110:

Northwest Africa 13706 (NWA 13706)

(Northwest Africa)

Purchased: 2019 Oct

Classification: Carbonaceous chondrite (CVred3)

Physical characteristics: Cut face reveals large chondrules and CAIs set in a dark matrix.

Petrography: (J. Gattacceca, CEREGE) Chondrite with large chondrules (average apparent diameter ~1 mm) and CAIs set in an abundant fine-grained iron-rich matrix.

Geochemistry: Olivine Fa_8.4±11.7, range Fa_0.3-39.1(n=13), Cr₂O₃ in ferroan olivine 0.19±0.09 (n=5). Low-Ca pyroxene Fs_1.1±0.2Wo_2.1±1.6(n=3). Sulfides are Ni free. Defocused analyses of the matrix FeO 39.1 wt%, analytical total 97.1 wt%.

Classification: Carbonaceous chondrite (CVred3). Reduced group based on the absence of Ni in sulfides.

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

Data from:
  MB110
  Table 0
  Line 0:

Place of purchase:	Munich, Germany
Date:	P 2019 Oct
Mass (g):	155
Pieces:	1
Class:	CVred3
Fayalite (mol%):	8.4±11.7 (n=13)
Ferrosilite (mol%):	1.1±0.2 (n=3)
Wollastonite (mol%):	2.1±1.6
Magnetic suscept.:	4.09
Classifier:	J. Gattacceca, CEREGE
Type spec mass (g):	20.4
Type spec location:	CEREGE
Main mass:	Kuntz
Finder:	anonymous
Comments:	work name K470; 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 Meteoritical Bulletin, no. 110, in preparation (2021)

Find references in NASA ADS:
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Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 7655 approved meteorites from (Northwest Africa) (plus 1972 unapproved names)

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