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NWA 11156 (15,160 g)

NWA 11156 (15,160 g)

Northwest Africa 11156 (NWA 11156)

(Northwest Africa)

Purchased: 2016

Classification: HED achondrite (Eucrite, monomict)

History: The meteorite was bought in 2016 from a meteorite dealer in Morocco.

Physical characteristics: Grayish individual with patches of fusion crust.

Petrography: The meteorite displays a characteristic basaltic texture of up to 1 mm sized exsolved pyroxenes and up to 1.5 sized often lath-shaped calcic plagioclase. Minor phases include FeS, chromite, and silica. No metallic iron was found.

Geochemistry: low-Ca pyroxene: Fs60.9±0.4Wo2.0±0.4 (Fs60.2-61.4Wo1.6-3.0, n=14, FeO/MnO=30-33); Ca-pyroxene: Fs27.0±0.7Wo43.2±0.7 (Fs24.7-28.0Wo42.2-45.1, n=13, FeO/MnO=27-34); calcic plagioclase: An88.9±1.6 (An84.4-90.4, n=16)

 

Place of purchase:Morocco
Date:P 2016
Mass (g):360
Pieces:1
Class:Eucrite-mmict
Shock stage:moderate
Weathering grade:low
Ferrosilite (mol%):60.9; 27.0
Wollastonite (mol%):2.0; 43.2
Classifier:A. Greshake, MNB
Type spec mass (g):21.9
Type spec location:MNB
Main mass:Philippe Schmitt-Kopplin
Comments:Submitted by Ansgar Greshake

 

 

    150,00 €Preis
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