Meteoritical Bulletin: Entry for Northwest Africa 3105

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Northwest Africa 3105

Basic information

Name: Northwest Africa 3105
This is an OFFICIAL meteorite name.
Abbreviation: NWA 3105
Observed fall: No
Year found: 2001
Country: Morocco
Mass: 89.2 g

Classification
history:

Meteoritical Bulletin:	MB 89	(2005)	CR2
MetBase:	v. 7.1	(2006)	CR2
Recommended:			CR2 [explanation]

This is 1 of 185 approved meteorites classified as CR2. [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), and CR chondrites

Writeup

Writeup from MB 89:

Northwest Africa 3105

Morocco

Found 2001

Carbonaceous chondrite (CR2)

A single 89.2 g stone with 80 % crust was purchased in Rissani, Morocco in 2002. Description and classification (J. Wittke and T. Bunch, NAU): mostly even-sized (1-2 mm) chondrules are slightly flattened and define a preferred orientation. A few chondrules are completely rimmed by metal (Ni = 6.3 wt. %). The matrix contains numerous round metal grains (0.3 to 1.8 mm diameter) and smaller (< 0.4 mm), irregular metal with included olivine and pyroxenes. Rare CAI amoeboids and patches of phyllosilicates are sparsely distributed throughout the matrix. Matrix olivine, Fa_1.4-6.6 and orthopyroxenes, Fs_3.4–5.2 Wo_0.3-0.7. Shock stage, S2; weathering grade W1. Specimens: 12.35 g, NAU; main mass, Oakes.

Data from:
  MB89
  Table 7
  Line 446:

Origin or pseudonym:	Morocco
Place of purchase:	Rissani
Date:	2001
Mass (g):	89.2
Pieces:	1
Class:	CR2
Classifier:
Type spec mass (g):	12.35

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:

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:

This lists important revisions made to data for this record.

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