And I always have a barrel of it at my place.
This link may help you understand Oolitic sand:
http://geology.utah.gov/utahgeo/rockmineral/collecting/oolit ic.htm
The location that link refers to was exactly on the other side of the road from where we now collect. A football sized area of sand dunes was removed, probably by Broken Arrow Salt. I drove out there one day and it was gone. It felt like an episode of Star Trek TNG where the Cystalline Entity removed a city and left a hole.
Edited by Mark Peterson