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Northwest Africa 16506
Basic information Name: Northwest Africa 16506
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 16506
Observed fall: No
Year found: 2023
Country: (Northwest Africa)
Mass:help 589 g
Classification
  history:
Recommended:  L3    [explanation]

This is 1 of 859 approved meteorites (plus 2 unapproved names) classified as L3.   [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 20 Feb 2024
Writeuphelp
Writeup from MB 113:

Northwest Africa 16506 (NWA 16506)

(Northwest Africa)

Purchased: 2023

Classification: Ordinary chondrite (L3)

History: Purchased online in early 2023 by Chris Monk from Younes Chaoui. Found in September of 2022.

Physical characteristics: Single stone with dark brown partially weathered fusion crust.

Petrography: (D. Sheikh, Cascadia) Unequilibrated ordinary chondrite containing well-defined chondrules (Average diameter ~ 560±280 microns, n=126) set within a fine-grained matrix containing accessory Fe-Ni metal and troilite.

Geochemistry: Olivine (Fa24.0±8.7, range Fa3.5-31.4, n=66), Low-Ca Pyroxene (Fs15.0±7.5Wo1.4±1.3, range Fs2.1-26.1Wo0.3-5.1, n=45).

Classification: Ordinary Chondrite (L3) L group estimated according to average chondrule size.

Specimens: 20.2 g at Cascadia, main mass with Chris Monk.

Data from:
  MB113
  Table 0
  Line 0:
Place of purchase:online
Date:P 2023
Mass (g):589
Pieces:1
Class:L3
Shock stage:S3
Weathering grade:W3
Fayalite (mol%):24.0±8.7
Ferrosilite (mol%):15.0±7.5
Wollastonite (mol%):1.4±1.3
Classifier:D. Sheikh, Cascadia
Type spec mass (g):20.2
Type spec location:Cascadia
Main mass:Chris Monk
Comments:CML 1624: CM-023; 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 9829 approved meteorites from (Northwest Africa) (plus 1851 unapproved names)

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