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An MPOD Classic from from 11 November 2016

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NWA 10870   contributed by Hanno Strufe, IMCA 4267   MetBul Link

Roll Overs:     #1   #2   #3   #4   #5   #6    

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View all entries for   Meteorite (3)   Hanno Strufe (146)

Copyright (c) Hanno Strufe.
119.7 gram full slice.   Ureilite

Hanno writes:
NWA 10870 - Ureilite melt rock

Here is a meteorite with a classification so unique it has never been heard of so far. Itís a one-of-a-kind ureilite. It is "shock molten" and thoroughly recrystallized. The recrystallized grains are so fine that the grain size can only be recognized under high magnification (see photo 4, taken with an electron microscope). Thatís why you donít see the usual, colorful minerals when viewing the thin section in cross-polarized light. It is only a few minor areas displaying minimal color changes Ė another hint for the extraordinary nature of this material.

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Tisserlitine 001
Gourgues Denis

This Month

fredric stephan
 11/11/2020 3:11:00 PM
Great photos that show clearly the unusual quality of this meteorite. It is exceptional. Wish I had a piece to put in our EMP here at the U of AZ.

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