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NWA 15729  ( 11,358 g )

NWA 15729 ( 11,358 g )

Northwest Africa 15729 (NWA 15729)

(Northwest Africa)

Purchased: Jun 2022

Classification: Ordinary chondrite (LL3)

History: Reportedly found by nomads in Mauritania und subsequently purchased by Mr. Jasper Spencer from a Mauritanian dealer via Facebook Messenger.

Physical characteristics: Many brownish stones lacking fusion crust.

Petrography: The meteorite shows a chondritic texture with well-defined, mostly flattened and packed chondrules (mean diameter about 0.9 mm) in a fine-grained light brownish matrix that contains partly altered sulfides and rare FeNi metal.

Geochemistry: Cr2O3 in ferroan olivine 0.05±0.06 wt%, n=30.

Classification: Ordinary chondrite (LL3).

 

Place of purchase:Mauritania
Date:P Jun 2022
Mass (g):957
Pieces:many
Class:LL3
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):16.4±9.3 (1.4-35.9, n=28)
Ferrosilite (mol%):10.9±7.2 (1.7-19.4, n=29)
Wollastonite (mol%):1.1±1.0 (0.2-3.8, n=29)
Magnetic suscept.:3.92
Classifier:A. Greshake, MNB
Type spec mass (g):38.8
Type spec location:MNB
Main mass:Jasper Spencer
Comments:Submitted by Ansgar Greshake

 

 

    114,00 €Preis
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