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Northwest Africa 15436
Basic information Name: Northwest Africa 15436
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 15436
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 356 g
Classification
  history:
Recommended:  L5    [explanation]

This is 1 of 8831 approved meteorites (plus 4 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 12 Nov 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 15436 (NWA 15436)

(Northwest Africa)

Purchased: 2021 Nov 18

Classification: Ordinary chondrite (L5)

History: Purchased on 2021 Nov 18 by Chris Monk from Younes Chaoui.

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

Petrography: (D. Sheikh, Cascadia) Equilibrated ordinary chondrite containing secondary recrystallized feldspar (Av. ~20 μm) and accessory Fe-Ni metal, troilite, and chromite.

Geochemistry: Olivine (Fa24.7±0.3, range Fa23.7-25.3, n=28), Low-Ca Pyroxene (Fs20.8±0.2Wo1.6±0.4, range Fs20.4-21.4Wo1.0-3.1, n=25).

Classification: Ordinary Chondrite (L5).

Specimens: 20.15 g at Cascadia, main mass with Chris Monk.

Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Northwest Africa
Date:P 2021 Nov 18
Mass (g):356
Pieces:1
Class:L5
Shock stage:S2
Weathering grade:W3
Fayalite (mol%):24.7±0.3
Ferrosilite (mol%):20.8±0.2
Wollastonite (mol%):1.6±0.4
Classifier:D. Sheikh, Cascadia
Type spec mass (g):20.15
Type spec location:Cascadia
Main mass:Chris Monk
Comments:CML 1568; 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. 111, in preparation (2022)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9429 approved meteorites from (Northwest Africa) (plus 1876 unapproved names)

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