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NWA 14636  ( 26,583 g )

NWA 14636 ( 26,583 g )

Northwest Africa 14636 (NWA 14636)

Diogenite, (Northwest Africa)

Purchased: 2021 Dec

Classification: HED achondrite (Diogenite)

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

Physical characteristics: Brownish rock with minor fusion crust.

Petrography: The meteorite shows a protogranular texture predominatly of orthopyroxene up to 4.5 mm in size with minor interstitial augite. Accessory phases include silica, Ti-poor chromite, and troilite. No metallic iron found. The meteorite appears unbrecciated and contains few shock melt pockets.

Geochemistry: low-Ca pyroxene: Fs26.7±0.2Wo2.7±0.1 (Fs26.4-27.1Wo2.6-3.0, FeO/MnO=25-33, n=9); Ca-pyroxene: Fs11.5±0.3Wo43.5±0.2 (Fs11.2-11.9Wo43.2-43.7, FeO/MnO=25-33, n=7)

 

State/Prov/County:Diogenite
Place of purchase:Morocco
Date:P 2021 Dec
Mass (g):630.3
Pieces:1
Class:Diogenite
Shock stage:moderate
Weathering grade:moderate
Ferrosilite (mol%):26.7; 11.5
Wollastonite (mol%):2.6; 43.5
Classifier:A. Greshake, MNB
Type spec mass (g):23.6
Type spec location:MNB
Main mass:Hanno Strufe and Andreas Grünemeyer
Comments:Submitted by Ansgar Greshake

 

 

    399,00 €Preis
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