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Northwest Africa 17022
Basic information Name: Northwest Africa 17022
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 17022
Observed fall: No
Year found: 2024
Country: (Northwest Africa)
Mass:help 13.4 kg
Classification
  history:
Recommended:  L5    [explanation]

This is 1 of 9037 approved meteorites (plus 5 unapproved names) classified as L5.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 5 Sep 2024
Writeuphelp
Writeup from MB 113:

Northwest Africa 17022 (NWA 17022)

(Northwest Africa)

Purchased: 2024

Classification: Ordinary chondrite (L5)

History: Sample was purchased by Mark Lyon in 2024 from a meteorite dealer in northwest Africa, then subsequently purchased by Chris Sanders.

Physical characteristics: Single stone with weathered fusion crust.

Petrography: (D. Sheikh, Cascadia) Equilibrated ordinary chondrite containing secondary recrystallized feldspar (Av. ~40 µm) and accessory Fe-Ni metal, troilite, and chromite.

Geochemistry: Olivine (Fa25.8±0.3, range Fa25.3-26.3, n=28), Low-Ca Pyroxene (Fs22.0±0.4Wo1.4±0.3, range Fs21.5-22.9Wo1.1-2.2, n=28).

Classification: Ordinary Chondrite (L5).

Specimens: 74.7 g and a polished thin section at Cascadia, main mass with Chris Sanders.

Data from:
  MB113
  Table 0
  Line 0:
Place of purchase:online
Date:P 2024
Mass (g):13400
Pieces:1
Class:L5
Shock stage:S4
Weathering grade:W3
Fayalite (mol%):25.8±0.3
Ferrosilite (mol%):22.0±0.4
Wollastonite (mol%):1.4±0.3
Classifier:D. Sheikh, Cascadia
Type spec mass (g):74.7
Type spec location:Cascadia
Main mass:Chris Sanders
Comments:CML 1799; ML01; 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. 113, in preparation (2024)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9933 approved meteorites from (Northwest Africa) (plus 1837 unapproved names)

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