Silicate perovskite, (Mg,Fe,Al)SiO
3
oxygen atom O
iron Fe, magnesium Mg or aluminum Al atom
silicon atom Si
Cristallographic structure: orthorombic.
This mineral is not found at the Earth's surface but it composes most of the Earth lower mantle: it is the most aboundant mineral of the Earth. It results from the decomposition of
ringwoodite
under high pressure.
Copyright © 2001 Sébastien Merkel
