NWA 18245

 

NWA 18245

Found Sahara, 2025

Carbonaceous Chondrite

CM2

Specimen is a 0.60g endcut



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Northwest Africa 18245
Basic information Name: Northwest Africa 18245
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 18245
Observed fall: No
Year found: 2025
Country: (Northwest Africa)
Mass: 173.1 g
Classification
  history:
Recommended:       CM2    
Comments: Approved 23 Dec 2025
Writeup Writeup from MB 114:
Northwest Africa 18245 (NWA 18245)
(Northwest Africa)
Purchased: 2025 Oct
Classification: Carbonaceous chondrite (CM2)
History: The meteorite was purchased from a dealer in Morocco.
Physical characteristics: Many dark grayish rocks some of which covered with some fusion crust.
Petrography: Carbonaceous chondrite composed of small chondrules (apparent mean diameter about 250 µm), chondrule pseudomorphs, mineral fragments, and few CAIs set into fine-grained Fe-rich matrix containing Ca-carbonates, magnetite, pentlandite, and rare FeNi-metal. Some chondrules and CAIs are surrounded by fine-grained dust rims. Low analytical totals of matrix analyses confirm the presence of hydrous phyllosilicates.
Geochemistry: Matrix analyses yield 36.5±0.8 wt% FeO and an average total of 85.1±1.6 wt% (5 µm defocused beam, N=5)
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 2011-12-24)
Kuntz: Fabien Kuntz, France; Website (private address)

 

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The WWMeteorites team (for "WorldWide Meteorites" - Meteorites from around the world) was created in 2003 with the primary goal of traveling around globe in search of these fascinating celestial objects, and make them available for Science... and Collectors. Since 2017, the team has established its base camp on the island of Unst (Shetland, UK).

With four or five trips per year on average, the number of finds (in countries as diverse as Tunisia, Spain, Qatar, the Sultanate of Oman ...) has quickly become important. WWMeteorites therefore collaborates with several laboratories that analyze, and classify the new meteorites, mainly the Museum Fur Naturkunde (Berlin), the CEREGE (University of Aix-Marseille), and the Appalacjain State University (North Carolina). WWmeteorites (under the name of its founder, Fabien Kuntz.)  have already more than 500 meteorites listed in the Meteoritical Society Database.

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