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Northwest Africa 15287
Basic information Name: Northwest Africa 15287
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 15287
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 1175 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 14 Sep 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 15287 (NWA 15287)

(Northwest Africa)

Purchased: June 2021

Classification: Ordinary chondrite (L5)

History: Purchased by Julie Michels from Topher Spinnato in June 2021. Later acquired by Jeffrey DeVries.

Physical characteristics: Four stones with dark brown fusion crust.

Petrography: (D. Sheikh, Cascadia) Sample is an ordinary chondrite containing chondrules (~0.6 mm) and sparse lithic clast fragments (mm-sized) set within a fine-grained matrix containing accessory Fe-Ni metal and troilite.

Geochemistry: Olivine (Fa24.5±1.2, range Fa22.7-27.9, n=27), Low-Ca Pyroxene (Fs21.1±1.1Wo1.0±0.2, range Fs19.4-23.7Wo0.5-1.5, n=30).

Classification: Ordinary chondrite (L5).

Specimens: 32.1 g at Cascadia, main mass with Jeffrey DeVries.

Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Arizona
Date:P June 2021
Mass (g):1175
Pieces:4
Class:L5
Shock stage:S3
Weathering grade:W3
Fayalite (mol%):24.5±1.2
Ferrosilite (mol%):21.1±1.1
Wollastonite (mol%):1.0±0.2
Classifier:D. Sheikh, Cascadia
Type spec mass (g):32.1
Type spec location:Cascadia
Main mass:Jeffrey DeVries
Comments:CML 1555; 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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