NWA 8089  (4,355 g)

NWA 8089 (4,355 g)

Northwest Africa 8089 (NWA 8089)

(Northwest Africa)

Purchased: 2013 July

Classification: Carbonaceous chondrite (CM2)

Petrography: (A. Greshake, MNB) The small almost black stones are composed of small (about 0.3 mm in diameter) chondrules and rare CAIs set into a dark matrix of mainly phyllosilicates. Matrix dominates over chondrules, CAIs, and rare Fe,Ni-metal grains and most chondrules and CAIs are surrounded by fine-grained accretionary rims.

 

Place of purchase: Erfoud, Morocco

Date: P 2013 July

Mass (g): 13

Class: CM2

Shock stage: moderate

Weathering grade: moderate

Fayalite (mol%): 8.4±11.4 (0.7-34.2, n=19)

Ferrosilite (mol%): 2.4±2 (0.7-6.5, n=21)

Classifier: A. Greshake, MNB

Type spec mass (g): 2.8

Type spec location: MNB

Main mass: Hanno Strufe

Comments: Submitted by Ansgar Greshake

 

 

 

    240,00 €Preis
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