Pegmatite

Monday, November 1, 2010

Pegmatite is a intrusive igneous rock, which means it's formed through cooling and consolidation of magma, below the surface of the earth. This rock is mostly found in the major cratons (old and stable parts of the continental lithosphere). Their importance results by the fact that they often contain rare minerals such as aquamarine, topaz or fluorite.

To download the image just click on it and then save it, it is absolutely free, however if you like what you found here consider making a DONATION!

online poker

0 comments

There was an error in this gadget