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NWA 7977

Basic information:

Name: Northwest Africa 7977
Classification: HED achondrite (Diogenite)
Abbreviation: NWA 7977
Observed fall: No
Year found: 2013
Country: Morocco
Mass: TKW 3.4 kg

Dimension: 81x59x59

Weight: 357,7g

 

 

 

Physical characteristics: Numerous matching fragments of the original mass, friable with coarse grained gemmy green pyroxenes, some light tan desert coating present.

Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows approximately 95% pyroxene, minor iron metal, chromite, troilite, and silica.

Geochemistry: (C. Agee and N. Muttik, UNM) Low Ca-pyroxene Fs28.4±0.3Wo3.5±0.7, Fe/Mn=29±1 n=14.

Classification: Achondrite (diogenite). Equilibrated, uniform pyroxene compositions.

 

Meteoritical Bulletin: http://tiny.pl/qskn2

 

 

 


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  • NWA 7977
  • NWA 7977
  • NWA 7977
  • NWA 7977


CONTACT

email address:

artmet.collection@gmail.com

 

 

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INTERNATIONAL METEORITE COLLECTORS ASSOCIATION

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