Meteoritical Bulletin: Entry for Northwest Africa 1628

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Northwest Africa 1628

Basic information

Name: Northwest Africa 1628
This is an OFFICIAL meteorite name.
Abbreviation: NWA 1628
Observed fall: No
Year found: 2003
Country: (Northwest Africa)
Mass: 18.2 g

Classification
history:

Meteoritical Bulletin:	MB 89	(2005)	CK
MetBase:	v. 7.1	(2006)	CK
Recommended:			CK [explanation]

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

Writeup

Writeup from MB 89:

Northwest Africa 1628

Northwest Africa

Found 2003

Carbonaceous chondrite (CK)

A 35.7 g stone was purchased in Rissani, Morocco in September 2003. Description and classification (T. Bunch and J. Wittke, NAU): Partially shock-melted/crystallized CK (S3-6) of undeterminable petrologic grade. Cataclastic matrix consists of a massive network of small-grained olivine (Fa₃₁) with many microns-size magnetite inclusions (Cr₂O₃, 0.57 wt. %; Al₂O₃, 3.1 wt. %) and plagioclase (An_29.3). Several chondrules with thick, fine-grained rims, are mantled with quench-form, alumina-rich (5.6 wt. %), low-Ca pyroxene (Fs_23.2En_76.8), set in Ca-rich mesostasis. Many other chondrules also show characteristics of partial melting. Moderate weathering grade. Specimens: 7.8 g, NAU; main mass, Oakes.

Data from:
  MB89
  Table 7
  Line 18:

Place of purchase:	Rissani
Date:	2003
Mass (g):	18.2
Pieces:	1
Class:	CK
Shock stage:	S4-6
Weathering grade:	W2
Type spec mass (g):	7.8
Comments:	see separate entry; Undefined note. NAU is Northern Arizona University, Flagstaff, AZ 86011, USA

Institutions
and collections

NAU: Geology, Bldg 12 Knoles Dr Northern Arizona University, Flagstaff, AZ 86011, United States; Website (institutional address; updated 12 Apr 2012)
Oakes: Nelson Oakes, Route 1, House 50C, Uniondale, PA 18470, United States; Website (private address)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 89, MAPS 40, A201-A263 (2005)

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Geography:

Coordinates:

Unknown.

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

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Revision
history:

This lists important revisions made to data for this record.

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