Rocks From Space Picture of the Day August 25, 2007
ALLENDE
Fell: February 8, 1969
Specimen weight: 38.1 g
The sample shows three different forms of fusion crust:
A thick and dark primary crust, a secondary crust
and a tertiary crust that is very thin. It can be recognized when compared
with the "fracture" surface.
Credit & copyright: Andreas Ruh
Author & editor:
Michael Johnson
www.spacerocksinc.com
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