Meteoritical Bulletin: Entry for Northwest Africa 4770

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Northwest Africa 4770

Basic information

Name: Northwest Africa 4770
This is an OFFICIAL meteorite name.
Abbreviation: NWA 4770
Observed fall: No
Year found: 2007
Country: Morocco
Mass: 88 g

Classification
history:

Meteoritical Bulletin:	MB 95	(2009)	CK4
Recommended:			CK4 [explanation]

This is 1 of 128 approved meteorites classified as CK4. [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (equilibrated), CK chondrites, CK chondrites (type 4-6), and CV-CK clan chondrites

Comments:

Approved 12 Feb 2009

Data from:
  MB95
  Table 2
  Line 50:

Place of purchase:	Talsint, Morocco
Date:	May-07
Mass (g):	88.01
Pieces:	1
Class:	CK4
Shock stage:	S1
Weathering grade:	W3
Fayalite (mol%):	31±0.3
Ferrosilite (mol%):	26.8±0.3
Magnetic suscept.:	4.56
Classifier:	M. Bourot-Denise, MNHNP
Type spec mass (g):	20.1
Type spec location:	MNHNP
Main mass:	PThomas
Comments:	Paired with NWA 4422; magnetite mean wt% Cr2O3= 4.8, MgO- 0.22

Institutions
and collections

MNHNP: Museum National d'Histoire Naturelle, IMPMC-CP52, 57 rue Cuvier, 75005 Paris, France, France; Website (institutional address)
PThomas: Philippe Thomas, Meteoritica, La Chave, 07690 St André en Vivarais, France (private address)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 95, MAPS 44, 429-462 (2009)

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Geography:

Morocco

Coordinates:

Unknown.

Statistics:
This is 1 of 2082 approved meteorites from Morocco (plus 31 unapproved names) (plus 1 impact crater)

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Revision
history:

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