Meteoritical Bulletin: Entry for Northwest Africa 12671

MetSoc Home Publications Contacts

Search the Meteoritical Bulletin Database
Last update: 15 Apr 2024
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 12671

Basic information

Name: Northwest Africa 12671
This is an OFFICIAL meteorite name.
Abbreviation: NWA 12671
Observed fall: No
Year found: 2018
Country: (Northwest Africa)
Mass: 680 g

Classification
history:

Meteoritical Bulletin:	MB 108	(2020)	CK6
Recommended:			CK6 [explanation]

This is 1 of 83 approved meteorites classified as CK6. [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (equilibrated), CK chondrites, CK chondrites (type 4-6), and CV-CK clan chondrites

Comments:

Approved 11 Jun 2019

Writeup

Writeup from MB 108:

Northwest Africa 12671 (NWA 12671)

(Northwest Africa)

Purchased: 2018

Classification: Carbonaceous chondrite (CK6)

History: The meteorite was purchased from a local meteorite dealer in Laayoune, Mauritania.

Physical characteristics: Many small dark greyish fragments some of which are partly covered with fusion crust.

Petrography: The meteorite displays a dark-grayish interior and predominantly consists of fine-grained recrystallized matrix dominated by ferrous olivine. Chondrules are only rarely encountered. Minor phases include intermediate plagioclase, low-Ca pyroxene, Ca-pyroxene, and FeNi-sulfides. Cr-rich magnetite is abundant; metal is virtually absent.

Geochemistry: olivine: Fa_28.7±0.2(FeO/MnO=100±10, n=11); low-Ca pyroxene: Fs_26.8±0.9Wo_0.5±0.1, n=12; Ca-pyroxene: Fs_8.4±0.3Wo_46.2±0.3, n=15

Data from:
  MB108
  Table 0
  Line 0:

Place of purchase:	Laayoune, Morocco
Date:	P 2018
Mass (g):	680
Pieces:	many
Class:	CK6
Shock stage:	S2
Weathering grade:	W1
Fayalite (mol%):	28.7
Ferrosilite (mol%):	26.8; 8.4
Wollastonite (mol%):	0.5; 46.2
Classifier:	A. Greshake, MNB
Type spec mass (g):	22.2
Type spec location:	MNB
Main mass:	Larbi Chnaoui
Comments:	Submitted by Ansgar Greshake

Institutions
and collections

MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150

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)
Domjan Svilkovic

Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)

Also see:

This lists the most popular meteorites among people who looked up this meteorite.

Revision
history:

This lists important revisions made to data for this record.

Direct link to this page