Meteoritical Bulletin: Entry for Northwest Africa 1907

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Northwest Africa 1907

Basic information

Name: Northwest Africa 1907
This is an OFFICIAL meteorite name.
Abbreviation: NWA 1907
Observed fall: No
Year found: 2003
Country: (Northwest Africa)
Mass: 476 g

Classification
history:

Meteoritical Bulletin:	MB 88	(2004)	CK5
MetBase:	v. 7.1	(2006)	CK5
Recommended:			CK5 [explanation]

This is 1 of 217 approved meteorites classified as CK5. [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (equilibrated), CK chondrites, CK chondrites (type 4-6), and CV-CK clan chondrites

Writeup

Writeup from MB 88:

Northwest Africa 1907

Morocco

Found 2003

Carbonaceous chondrite (CK5)

A 476 g stone was purchased in Rissani in June 2003. Classification and mineralogy (J. Wittke and T. Bunch, NAU): coarse, recrystallized matrix and some chondrule margins. Olivine is equilibrated at Fa_32.3 (range, 32.1-32.4) with NiO = 0.52 wt%; large patches of plagioclase with variable composition between An₃₂ and An₆₀; magnetite contains 5.3 wt% Cr₂O₃ and 1.88 wt% Al₂O₃, troilite, and phosphate. Shock level, S2/3; weathering grade, W2. Specimens: type specimen, 22.15 g, NAU; main mass, MFarmer.

Data from:
  MB88
  Table 4
  Line 74:

Place of purchase:	Rissani
Date:	P Jun 2003
Mass (g):	476
Pieces:	1
Class:	CK5
Classifier:	T. Bunch and J. Wittke, NAU
Type spec mass (g):	22.15
Type spec location:	ASU
Main mass:	MFarmer

Institutions
and collections

ASU: Center for Meteorite Studies, Arizona State University, Tempe, Arizona 85287-1404, United States; Website (institutional address; updated 14 Jan 2012)
NAU: Geology, Bldg 12 Knoles Dr Northern Arizona University, Flagstaff, AZ 86011, United States; Website (institutional address; updated 12 Apr 2012)
MFarmer: Michael Farmer, P.O. Box 86059, Tucson, AZ 85754-6059, United States; Website (private address)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 88, MAPS 39, A215-A272 (2004)

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Photos:

Credit	Photos
Photos uploaded by members of the Encyclopedia of Meteorites. (Caution, these are of unknown reliability)
Dirk Hohmann
Woreczko Jan & Wadi

Geography:

Coordinates:

Unknown.

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

Also see:

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Revision
history:

This lists important revisions made to data for this record.

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