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Northwest Africa 14207
Basic information Name: Northwest Africa 14207
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14207
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass:help 520 g
Classification
  history:
Recommended:  L4    [explanation]

This is 1 of 1913 approved meteorites (plus 4 unapproved names) classified as L4.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 18 Sep 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 14207 (NWA 14207)

(Northwest Africa)

Purchased: 2019

Classification: Ordinary chondrite (L4)

History: Purchased by Geologist Juan Avilés Poblador in 2019 from a meteorite dealer in Mauritania.

Physical characteristics: Single stone with minor fusion crust.

Petrography: (D. Sheikh, Cascadia) This sample is an ordinary chondrite containing chondrules (Av. 650±100 μm) and accessory Fe-Ni metal and troilite.

Geochemistry: Olivine (Fa25.7±1.4, range Fa23.9-28.8, n=25), Low-Ca Pyroxene (Fs21.0±0.7Wo1.5±0.2, range Fs19.9-22.4Wo1.2-2.0, n=14).

Classification: Ordinary chondrite (L4).

Specimens: 40 g and a thin section at Cascadia; main mass with Juan Avilés Poblador.

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Mauritania
Date:P 2019
Mass (g):520
Pieces:1
Class:L4
Shock stage:S2
Weathering grade:W3
Fayalite (mol%):25.7±1.4
Ferrosilite (mol%):21.0±0.7
Wollastonite (mol%):1.5±0.2
Classifier:D. Sheikh, Cascadia
Type spec mass (g):40
Type spec location:Cascadia
Main mass:Juan Aviles Poblador
Comments: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:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8136 approved meteorites from (Northwest Africa) (plus 1942 unapproved names)

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