I was watching Paranormal State and they said fools gold can record things that happened with high energy causing residual hauntings. I found this very interesting I was wanting to know more about it!

Actually, it not just fool's gold. There are a few minerals out there take can absorb the high energies from an event and reenact them over time as a away to excerpt the old energy and bring in new. Limestone and quartz are other ones. Hope this sheds a little light!