Here's the link if anybody wants to look.
http://cubits.org/bluegardens/...
Rocks, oh yes, we have several kinds here. Some apparently from an ancient volcano, others ? I found one last week with layers that apparently flowed together and cooled. Many different colors of rocks, some gray, some brownish, a lot of them red. All heavy! I could build a sizeable castle just with the ones on our property!