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Northwest Africa 15605
Basic information Name: Northwest Africa 15605
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 15605
Observed fall: No
Year found: 2022
Country: (Northwest Africa)
Mass:help 1000 g
Classification
  history:
Recommended:  Lunar (feldsp. breccia)    [explanation]

This is 1 of 312 approved meteorites classified as Lunar (feldsp. breccia).   [show all]
Search for other: Lunar meteorites
Comments: Approved 23 Feb 2023
Writeuphelp
Writeup from MB 112:

Northwest Africa 15605 (NWA 15605)

(Northwest Africa)

Purchased: Aug 2022

Classification: Lunar meteorite (feldspathic breccia)

History: The meteorite was purchased from a group of meteorites hunters in Nouadhibou, Mauritania, in August, 2022.

Physical characteristics: Many dark grayish fragments without fusion crust. The two largest fragments weigh 467.8 and 255.3 g, respectively.

Petrography: The meteorite is a fine-grained breccia predominantly composed of up to 700 µm sized anorthite fragments plus less abundant olivine, low-Ca-pyroxene, and augite all set in in a fine-grained felspathic matrix. Minor phases include ilmenite, chromite, and troilite.

Geochemistry: olivine: Fa47.5±0.3 (Fa47.2-48.0, FeO/MnO=86±4, n=7); low-Ca pyroxene: Fs40.6±0.2Wo2.5±0.2 (Fs40.4-40.9Wo2.3-3.0, FeO/MnO=52±3, n=7); zoned pyroxene: Fs26.6±4.5Wo22.3±9.3 (Fs20.5-31.9Wo10.4-35.1, FeO/MnO=51±5, n=7); calcic plagioclase: An96.7±0.7 (An95.5-97.8, n=7)

Data from:
  MB112
  Table 0
  Line 0:
Place of purchase:Nouadhibou, Mauritania
Date:P Aug 2022
Mass (g):1000
Pieces:many
Class:Lunar (feldsp. breccia)
Shock stage:high
Weathering grade:low
Fayalite (mol%):47.5
Ferrosilite (mol%):40.6; 26.6
Wollastonite (mol%):2.5; 22.3
Classifier:A. Greshake, MNB
Type spec mass (g):33.1
Type spec location:MNB
Main mass:Salamu Ali
Comments:Submitted by Ansgar Greshake
Institutions
   and collections		 MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
Catalogs:
References: Published in Meteoritical Bulletin, no. 112, in preparation (2023)
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Photos:
CreditPhotos
Public domain photographs:
Ansgar Greshake      
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9042 approved meteorites from (Northwest Africa) (plus 1870 unapproved names)

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