These mineral images are free to use how you wish.
Dave Dyet <a rel="nofollow" class="external free" href="http://www.shutterstone.com">http://www.shutterstone.com</a>  <a rel="nofollow" class="external free" href="http://www.dyet.com">http://www.dyet.com</a>
<span class="int-own-work" lang="en">Own work</span>