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Northwest Africa 2730
Basic information Name: Northwest Africa 2730
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 2730
Observed fall: No
Year found: 2004
Country: (Northwest Africa)
Mass:help 100 g
Meteoritical Bulletin:  MB 107  (2018)  L6
Recommended:  L6    [explanation]

This is 1 of 12583 approved meteorites (plus 8 unapproved names) classified as L6.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 9 Nov 2018
Writeup from MB 107:

Northwest Africa 2730 (NWA 2730)

(Northwest Africa)

Purchased: 2004

Classification: Ordinary chondrite (L6)

History: A stone of several hundred grams was purchased by Mike Farmer and Jim Strope in 2004 from a dealer in Erfoud, Morocco, and a 24.5 g specimen was submitted to Dr. Ted Bunch for classification. The whereabouts and exact weight of the original main mass are unknown, but the 24.5 g specimen was acquired by the Planetary Studies Foundation and subsequently classified at the University of Washington.

Petrography: (A. Irving and S. Kuehner, UWS) Mostly recrystallized with rare remnant chondrules. Accessory merrillite and chlorapatite are present.

Geochemistry: Olivine (Fa24.8-24.9, N = 3), orthopyroxene (Fs20.6-20.9Wo1.5-1.4, N = 2), clinopyroxene (Fs8.3-8.5Wo45.1-44.3, N = 2).

Classification: Ordinary chondrite (L6).

Specimens: The entire specimen including one polished thin section is at PSF.

Data from:
  Table 0
  Line 0:
Place of purchase:Erfoud
Date:P 2004
Mass (g):100s
Shock stage:S2
Weathering grade:W1/2
Fayalite (mol%):24.8-24.9
Ferrosilite (mol%):20.6-20.9
Wollastonite (mol%):1.5-1.4
Classifier:A. Irving and S. Kuehner, UWS; T. Bunch and J. Wittke, NAU
Type spec mass (g):24.5
Type spec location:PSF
Main mass:PSF
Comments:Submitted by A. Irving
   and collections
NAU: Geology, Bldg 12 Knoles Dr Northern Arizona University, Flagstaff, AZ 86011, United States; Website (institutional address; updated 12 Apr 2012)
PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011)
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
Strope: 421 Fourth Street, Glen Dale, WV 26038, United States; Website (private address)
References: Published in Meteoritical Bulletin, no. 107, MAPS 55, 460-462
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     This is 1 of 9429 approved meteorites from (Northwest Africa) (plus 1876 unapproved names)

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