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NWA 13851 (6,693 g)

NWA 13851 (6,693 g)

Northwest Africa 13851 (NWA 13851)

(Northwest Africa)

Purchased: 2021

Classification: HED achondrite (Eucrite)

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

Physical characteristics: Light grayish rock partly covered with fusion crust.

Petrography: The meteorite is an unbrecciated basalt composed of exsolved pyroxene and often lath-shaped calcic plagioclase grains up to 1 mm in size. Minor phases include silica, ilmenite, chromite, and FeS. No metallic iron has been detected.

Geochemistry: Low-Ca pyroxene: Fs60.4±0.2Wo1.9±0.1 (Fs60.0-60.7Wo1.8-2.1, FeO/MnO=28-29, n=7); Ca-pyroxene: Fs26.2±0.3Wo44.0±0.3 (Fs25.6-26.8Wo43.3-44.3, FeO/MnO=26-29, n=7); calcic plagioclase: An89.3±1.1 (An87.6-90.9, n=7).

Classification: Achondrite (eucrite)


Place of purchase: Morocco

Date: P 2021

Mass (g): 265

Pieces: 1

Class: Eucrite

Shock stage: moderate

Weathering grade: low

Ferrosilite (mol%): 60.4

Wollastonite (mol%): 1.9

Classifier: A. Greshake, MNB

Type spec mass (g): 26.6

Type spec location: MNB

Main mass: Philippe Schmitt-Kopplin

Comments: Submitted by Ansgar Greshake


    65,00 €Preis
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