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NWA 13064 (6,449 g)

NWA 13064 (6,449 g)

Northwest Africa 13064 (NWA 13064)

(Northwest Africa)

Purchased: 2019

Classification: HED achondrite (Eucrite)

History: The meteorite was purchased from a meteorite dealer in Morocco.

Physical characteristics: Many greyish fragments without fusion crust.

Petrography: The meteorite is a fragmental breccia composed of larger exsolved pyroxene (up to 400 µm) and calcic plagioclase (up to 500 µm) grains set into a more fine-grained clastic matrix. Minor phases include silica, chromite, FeS, and ilmenite. No metallic iron has been detected. The meteorite contains shock melt veins.

Geochemistry: low-Ca pyroxene: Fs57.4±0.5Wo2.7±0.2 (Fs57.0-58.8Wo2.2-3.1, FeO/MnO=26-28, n=12); Ca-pyroxene: Fs25.2±0.7Wo43.3±0.7 (Fs24.4-27.3Wo41.1-44.0, FeO/MnO=24-28, n=15); calcic plagioclase: An90.9±0.4 (An90.2-91.6, n=14)

 

Place of purchase:Morocco
Date:P 2019
Mass (g):6300
Pieces:many
Class:Eucrite
Shock stage:low
Weathering grade:moderate
Ferrosilite (mol%):57.4; 25.2
Wollastonite (mol%):2.7; 43.3
Classifier:A. Greshake, MNB
Type spec mass (g):26.9
Type spec location:MNB
Main mass:Mohamed Lamine
Comments:Submitted by Ansgar Greshake

 

 

    65,00 €Preis
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