[Rockhounds] Super-deep diamond provides first evidence in nature of Earth's fourth most abundant mineral

[Albert McCann]

> -----Original Message-----
> From: Rockhounds [mailto:rockhounds-bounces at rockhounds.drizzle.com] On
> Behalf Of Kreigh Tomaszewski
> Subject: [Rockhounds] Super-deep diamond provides first evidence in nature
> of Earth's fourth most abundant mineral
> 
> For the first time, scientists have found Earth's fourth most abundant
> mineral—calcium silicate perovskite—at Earth's surface.
> 
> "Nobody has ever managed to keep this mineral stable at the Earth's
> surface," said Graham Pearson, a professor in the University of Alberta's
> Department of Earth and Atmospheric Sciences and Canada Excellence
> Research
> Chair Laureate. He explained the mineral is found deep inside Earth's
> mantle, at 700 kilometres.

I've been trying to find out what happens when this mineral is exposed to surface level pressure, and my Google foo is weak today :-)

If someone figured out a way to bring a pure sample to the surface, what would happen to it? Would it morph to something else?

Al