Meteoritical Bulletin: Entry for Northwest Africa 10040

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Northwest Africa 10040

Basic information

Name: Northwest Africa 10040
This is an OFFICIAL meteorite name.
Abbreviation: NWA 10040
Observed fall: No
Year found: 2013
Country: Morocco
Mass: 1000 g

Classification
history:

Meteoritical Bulletin:	MB 104	(2015)	CK6
Recommended:			CK6 [explanation]

This is 1 of 77 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 24 May 2015

Writeup

Writeup from MB 104:

Northwest Africa 10040 (NWA 10040)

Morocco

Find: 2013 Jan

Classification: Carbonaceous chondrite (CK6)

Physical characteristics: One single stone with a well-preserved fusion crust. Minimal weathering.

Petrography: A few chondrules and FeNi metal are observed in the section. Recrystallization is extensive. The major phase is olivine. Accessory phases include magnetite, and Ni-rich sulfide. Magnetite with well-developed ilmenite exsolution lamellae.

Geochemistry: NiO-rich olivine (average NiO 0.32 wt%, from 0.05 to 0.48 wt%). Ni-rich sulfide (Ni 20-27 wt%). Large compositional variations in plagioclase (An_30-70).

Classification: Carbonaceous chondrite (CK6).

Specimens: 26 g at PMO.

Data from:
  MB104
  Table 0
  Line 0:

Place of purchase:	Agadir
Date:	2013 Jan
Mass (g):	1 kg
Pieces:	1
Class:	CK6
Fayalite (mol%):	28.4±0.4 (n=11)
Ferrosilite (mol%):	25.5±3.4 (n=10), 9.6±1.8 (n=10)
Wollastonite (mol%):	1.1±1.0 (n=10), 46.0±3.7 (n=10)
Classifier:	S. Li, PMO
Type spec mass (g):	26
Type spec location:	PMO
Main mass:	Ke Zuokai
Comments:	Submitted by Hsu W.

Institutions
and collections

PMO: Purple Mountain Observatory, Nanjing, China (institutional address; updated 16 Dec 2011)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full

Find references in NASA ADS:
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Geography:

Morocco

Coordinates:

Unknown.

Statistics:
This is 1 of 1932 approved meteorites from Morocco (plus 27 unapproved names) (plus 1 impact crater)

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