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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 253 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 Meteoritical Bulletin, no. 110, in preparation (2021)
Find references in NASA ADS:
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Geography:

Algeria
Coordinates:Unknown.

Statistics:
     This is 1 of 1166 approved meteorites from Algeria (plus 29 unapproved names) (plus 4 impact craters)

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