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NWA 4643  ( 273,7 g )

NWA 4643 ( 273,7 g )

Northwest Africa 4643 (NWA 4643)

(Northwest Africa)

Purchased: 2006

Classification: Enstatite chondrite (EL6)

History: The meteorite was found by an anonymous finder in northwest Africa and bought by the main mass holder in Erfoud, Morocco.

Physical characteristics: Two brownish fragments without fusion crust weighing together 995.3 g.

Petrography: The meteorite displays a recrystallized texture of dominantly almost pure enstatite; no chondrules found in the section studied. Sulfides and FeNi metal are heavily oxidized.

Geochemistry: Pyroxene, Fs0.1-0.7. The few unweathered FeNi metal shows ~0.5 wt% Si.

Classification: Enstatite chondrite (EL6); low degree of shock, high degree of weathering.

Specimens: 21.4 g plus one polished thin section are on deposit at MNB.


Place of purchase:Erfoud, Morocco
Date:P 2006
Mass (g):995.3
Shock stage:low
Weathering grade:high
Ferrosilite (mol%):0.3 (0.1-0.7)
Classifier:A. Greshake, MNB
Type spec mass (g):21.4
Type spec location:MNB
Main mass:Hanno Strufe
Comments:Submitted by Ansgar Greshake




    821,00 €Preis
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