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Northwest Africa 14280
Basic information Name: Northwest Africa 14280
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14280
Observed fall: No
Year found: 2020
Country: Algeria
Mass:help 26 g
Classification
  history:
Recommended:  Lunar (feldsp. breccia)    [explanation]

This is 1 of 290 approved meteorites classified as Lunar (feldsp. breccia).   [show all]
Search for other: Lunar meteorites
Comments: Approved 31 Oct 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 14280 (NWA 14280)

Algeria

Find: November 2020

Classification: Lunar meteorite (feldspathic breccia)

History: Purchased by Matthew Stream in 2021 from a meteorite dealer in Algeria.

Physical characteristics: Sample displays minor fusion crust. A slice of the interior reveals an assortment of light and dark clasts.

Petrography: (D. Sheikh, Cascadia) Sample is a fragmental breccia primarily composed of angular to sub-rounded anorthitic clasts (up to 3 mm) and isolated mineral fragments set within a fine-grained matrix. Accessory phases include ilmenite and chromite.

Geochemistry: Olivine (Fa41.1±0.7, range Fa40.0-42.1, FeO/MnO=106±16, n=8), Low-Ca Pyroxene (Fs30.2Wo3.9, FeO/MnO=54, n=1), Calcic Plagioclase (An96.9±0.8, range An95.7-98.1, n=20).

Classification: Lunar (feldspathic fragmental breccia).

Specimens: 5.3 g at Cascadia; main mass with Matthew Stream.

Data from:
  MB110
  Table 0
  Line 0:
Date:November 2020
Mass (g):26
Pieces:1
Class:Lunar (feldsp. breccia)
Shock stage:moderate
Weathering grade:low
Fayalite (mol%):41.1±0.7
Ferrosilite (mol%):30.2
Wollastonite (mol%):3.9
Classifier:D. Sheikh, Cascadia
Type spec mass (g):5.3
Type spec location:Cascadia
Main mass:Matthew Stream
Comments:CML 1422; submitted by Daniel Sheikh
Institutions
   and collections
Cascadia: Cascadia Meteorite Laboratory, Portland State University, Department of Geology, Room 17 Cramer Hall, 1721 SW Broadway, Portland, OR 97201, United States; Website (institutional address; updated 28 Oct 2011)
Catalogs:
References: Published in Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4
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Geography:

Algeria
Coordinates:Unknown.

Statistics:
     This is 1 of 1246 approved meteorites from Algeria (plus 29 unapproved names) (plus 4 impact craters)

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