NWA 7811 Eucrite #4 – 9,8 g

146,26 $

NWA 7811 is a fresh meteorite classified eucrite polymict breccia of only 95 grams.

It was discovered in 2011 and classified by Anthony Irving in 2012.

The eucrites come from the Asteroid Vesta.

Petrography: (A. Irving and S. Kuehner, UWS) Fresh fragmental breccia composed mainly of crystal debris from several different basaltic eucrite and gabbroic eucrite protoliths (with some polymineralic clasts of same), plus sparse clasts of diogenite and diogenitic orthopyroxene. Minerals include exsolved pigeonite, orthopyroxene, clinopyroxene, calcic plagioclase, silica polymorph, ilmenite, troilite, chromite, and fayalite.

Geochemistry: Diogenitic orthopyroxene (Fs24.1Wo1.5; FeO/MnO = 34), orthopyroxene (Fs49.9Wo2.5; FeO/MnO = 31), clinopyroxene (Fs20.8-25.8Wo45.1-44.6; FeO/MnO = 32-35), host orthopyroxene (Fs61.6Wo1.8; FeO/MnO = 34), clinopyroxene exsolution lamellae (Fs21.6Wo43.8; FeO/MnO = 34), olivine (Fa92.7).

In stock

Categories: , SKU: dt-008-2-1-2-1-1-1-2-1-1-2-2-1-1

Description

Nice piece with fusion crust.

Comes with certificate.

Additional information

Weight 9,8 g
Dimensions 3,5 × 3,5 × 0,3 cm
Form

Slice

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