Meteoritical Bulletin: Entry for Northwest Africa 3368

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Northwest Africa 3368

Basic information

Name: Northwest Africa 3368
This is an OFFICIAL meteorite name.
Abbreviation: NWA 3368
Observed fall: No
Year found: 2005
Country: (Northwest Africa)
Mass: 1600 g

Classification
history:

Meteoritical Bulletin:	MB 90	(2006)	Eucrite
Recommended:			Eucrite [explanation]

This is 1 of 598 approved meteorites (plus 1 unapproved name) classified as Eucrite. [show all]
Search for other: Achondrites, Eucrites, and HED achondrites

Comments:

Approved 3 Feb 2006

Writeup

help

Writeup from MB 90:

Northwest Africa 3368

Northwest Africa

Find: 2005

Achondrite (eucrite)

History: John Birdsell and Marvin Killgore purchased a 1600 g stone.

Petrography: (D. Hill and K. Gardner, UAz) The stone was 100% covered with black fusion crust. There are a variety of light and dark angular clasts ranging in size from several mm to ~2 cm and rounded grains several millimeters in diameter. They are set in a light matrix typical of eucrites except for its distinct pink hue. Some systematic variations in the color exist. Approximately half of the slice is slightly darker pink than the other with an indistinct, irregular boundary.

Geochemistry: Pyroxene (Wo₆En₃₆Fs₅₉ and Wo₄₀En₃₀Fs₃₀), plagioclase (An₉₀Ab₁₀Or_0.4), chromite (TiO₂ = 5–27, Al₂O₃ = 5 [both wt%]), with minor ilmenite present. Bulk INAA (UAz) indicate ~1 0× CI REE abundances.

Classification: Achondrite (eucrite); minimal weathering.

Specimens: One thick section type specimen of 20.5 g and three small chips totaling 2.5 g are on deposit at UAz. M. Killgore holds the main mass.

Data from:
  MB90
  Table 2
  Line 221:

Place of purchase:	Unknown
Date:	2005
Mass (g):	1600
Pieces:	1
Class:	Euc
Type spec mass (g):	23

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)
Birdsell: Arizona Skies Meteorites, P.O. Box 2412, Flagstaff, AZ 86003, 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. 90, MAPS 41, 1383-1418 (2006)

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Photos:

Credit	Photos
Photos from the Encyclopedia of Meteorites:
Arizonaskies
Don Edwards

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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