Meteoritical Bulletin: Entry for Northwest Africa 5436

MetSoc Home Publications Contacts

Search the Meteoritical Bulletin Database
Last update: 3 Sep 2023
Search for:	Search type:	Search limits:	Display:	Publication:
Names Text Places Classes Years	Contains Starts with Exact Sounds like	NonAntarctic Falls Non-NWAs Has strewnfield		What's new in the last:
Include past classifications in search		Has photo	Limit to approved meteorite names
Search text:

Northwest Africa 5436

Basic information

Name: Northwest Africa 5436
This is an OFFICIAL meteorite name.
Abbreviation: NWA 5436
Observed fall: No
Year found: 2008
Country: Algeria
Mass: 1772 g

Classification
history:

Recommended:

CVred3 [explanation]

This is 1 of 30 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 5436 (NWA 5436)

Algeria

Purchased: 2008

Classification: Carbonaceous chondrite (CVred3)

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

Petrography: (J. Gattacceca, CEREGE) Large chondrules (~900 µm) set in an abundant fine-grained iron-rich matrix. Opaque minerals are troilite, metal and magnetite. CAIs up to 1 mm.

Geochemistry: Olivine Fa_13.7±4.5, range Fa_8.1-19.1(n=3). Low-Ca pyroxene Fs_11.8±8.0Wo_0.8±0.7, range Fs_3.7-23.3(n=5). Sulfides are Ni-free.

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

Specimens: Type speciment at CEREGE. Main mass with Norbert Kammel

Data from:
  MB110
  Table 0
  Line 0:

Place of purchase:	Erfoud
Date:	P 2008
Mass (g):	1772
Pieces:	1
Class:	CVred3
Weathering grade:	moderate
Fayalite (mol%):	13.7±4.5 (n=3)
Ferrosilite (mol%):	11.8±8.0 (n=5)
Wollastonite (mol%):	0.8±0.7
Magnetic suscept.:	4.39
Classifier:	J. Gattacceca, CEREGE
Type spec mass (g):	26
Type spec location:	CEREGE
Main mass:	Norbert Kammel
Finder:	anonymous
Comments:	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 10 Jun 2023)

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

Find references in NASA ADS:
Find references in Google Scholar:

Photos:

Credit	Photos
Photos uploaded by members of the Encyclopedia of Meteorites. (Caution, these are of unknown reliability)
Mirko Graul

Geography:

Algeria

Coordinates:

Unknown.

Statistics:
This is 1 of 1294 approved meteorites from Algeria (plus 30 unapproved names) (plus 4 impact craters)

Direct link to this page