Meteoritical Bulletin: Entry for Northwest Africa 4506

header

MetSoc Home Publications Contacts

Search the Meteoritical Bulletin Database
Last update: 15 Apr 2024
Search for:	Search type:	Search limits:	Display:	Publication:
Names Text Places Classes Years	Contains Starts with Exact Sounds like	NonAntarctic Falls Non-NWAs Has strewnfield		What's new in the last:
Include past classifications in search		Has photo	Limit to approved meteorite names
Search text:

Northwest Africa 4506

Basic information

Name: Northwest Africa 4506
This is an OFFICIAL meteorite name.
Abbreviation: NWA 4506
Observed fall: No
Year found: 2006
Country: (Northwest Africa)
Mass: 23.2 g

Classification
history:

Meteoritical Bulletin:	MB 92	(2007)	Pallasite-Main gr
Recommended:			Pallasite, PMG [explanation]

This is 1 of 58 approved meteorites (plus 1 unapproved name) classified as Pallasite, PMG. [show all]
Search for other: Main group pallasites, Metal-rich meteorites, and Pallasites

Comments:

Approved 24 Jul 2007
Revised 26 May 2009: Revised pallasite classifications

Writeup

help

Writeup from MB 92:

Northwest Africa 4506

Northwest Africa

Find: October 2006

Pallasite (main group)

History: Michael Farmer purchased the sample in Denver, Colorado in October 2006.

Physical characteristics: The meteorite was a fragment with a total mass of 23.12 g. The exterior color of the meteorite was orange and contains numerous by dark veins, as it was mainly olivine with veins of oxidized metallic Fe-Ni.

Petrography: (D. Schrader, M. Killgore and D. Lauretta, UAz) The meteorite contains olivine, Fe, Ni-rich metal, chromite, sulfide, and FeO. The olivine (2.2 – 3.2 mm) grains are surrounded by weathered remnant metal veins.

Mineral compositions and geochemistry: (D. Schrader, M. Killgore, D. Lauretta, K. Domanik, and D. Hill at UAz) Olivine (Fo_86.3-86.8; average = Fo_86.5±0.2), kamacite (average Ni = 4.96±1.60 [3.47 to 7.76] and average Co= 0.86±0.04 [0.81-0.92] all wt%) and one taenite analysis (Ni = 20.75 and Co = 0.54 [both wt%]). Reliable analyses on chromite and troilite were not possible due to weathering.

Classification:Pallasite (main group).

Type specimens: A total of 8.17 g of sample is on deposit at UAz (UA2059). MFarmer holds the main mass.

Data from:
  MB92
  Table 2
  Line 82:

Place of purchase:	Denver, Colorado, USA
Date:	Oct-2006
Mass (g):	23.2
Pieces:	1
Class:	Pal
Type spec mass (g):	8.17

Institutions
and collections

UAz: Lunar and Planetary Laboratory, University of Arizona, 1629 E. University Blvd., Tucson, AZ 85721, United States (institutional address; updated 14 Jan 2012)
MFarmer: Michael Farmer, P.O. Box 86059, Tucson, AZ 85754-6059, United States; Website (private address)
Killgore: Marvin and Kitty Killgore, Southwest Meteorite Laboratory, P.O. Box 95, Payson, AZ 85547, United States; Website (private address)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 92, MAPS 42, 1647-1694 (2007)

Find references in NASA ADS:
Find references in Google Scholar:

Geography:

Coordinates:

Unknown.

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

Also see:

This lists the most popular meteorites among people who looked up this meteorite.

Revision
history:

This lists important revisions made to data for this record.

Direct link to this page