Originally Posted by LRichard
According to this
, limestone can produce a "residual haunting" by having absorbed energy from an actual event in the past, but it's not actually ghosts causing the phenomena.
Thanks for the link. I also really liked the information about Quartz and Magnetite.
If I remember correctly, I think I've read some theories that certain types of rocks can act like recorders and basically just play back sounds from the past, and just like LRichard said, that would be a residual haunting.
Perhaps the reason why some people seem to be experiencing residual hauntings where there is limestone is because the stone is formed around bodies of water, like rivers, streams, etc. There are some theories out there that water sources attract and/or fuel spirit activity, perhaps due to the negative ions that are released by moving water.